408720120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:366

約数の個数: 256

約数和(自身を含む): 1403412480

約数和(自身を除く): 994692360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 31, 34, 40, 46, 51, 60, 62, 68, 69, 85, 92, 93, 102, 115, 120, 124, 136, 138, 155, 170, 184, 186, 204, 230, 248, 255, 276, 281, 310, 340, 345, 372, 391, 408, 460, 465, 510, 527, 552, 562, 620, 680, 690, 713, 744, 782, 843, 920, 930, 1020, 1054, 1124, 1173, 1240, 1380, 1405, 1426, 1564, 1581, 1686, 1860, 1955, 2040, 2108, 2139, 2248, 2346, 2635, 2760, 2810, 2852, 3128, 3162, 3372, 3565, 3720, 3910, 4215, 4216, 4278, 4692, 4777, 5270, 5620, 5704, 5865, 6324, 6463, 6744, 7130, 7820, 7905, 8430, 8556, 8711, 9384, 9554, 10540, 10695, 11240, 11730, 12121, 12648, 12926, 14260, 14331, 15640, 15810, 16860, 17112, 17422, 19108, 19389, 21080, 21390, 23460, 23885, 24242, 25852, 26133, 28520, 28662, 31620, 32315, 33720, 34844, 36363, 38216, 38778, 42780, 43555, 46920, 47770, 48484, 51704, 52266, 57324, 60605, 63240, 64630, 69688, 71655, 72726, 77556, 85560, 87110, 95540, 96945, 96968, 104532, 109871, 114648, 121210, 129260, 130665, 143310, 145452, 148087, 155112, 174220, 181815, 191080, 193890, 200353, 209064, 219742, 242420, 258520, 261330, 286620, 290904, 296174, 329613, 348440, 363630, 387780, 400706, 439484, 444261, 484840, 522660, 549355, 573240, 592348, 601059, 659226, 727260, 740435, 775560, 801412, 878968, 888522, 1001765, 1045320, 1098710, 1184696, 1202118, 1318452, 1454520, 1480870, 1602824, 1648065, 1777044, 2003530, 2197420, 2221305, 2404236, 2636904, 2961740, 3005295, 3296130, 3406001, 3554088, 4007060, 4394840, 4442610, 4808472, 5923480, 6010590, 6592260, 6812002, 8014120, 8885220, 10218003, 12021180, 13184520, 13624004, 17030005, 17770440, 20436006, 24042360, 27248008, 34060010, 40872012, 51090015, 68120020, 81744024, 102180030, 136240040, 204360060, 408720120]

約数ペア:

[(1, 408720120), (2, 204360060), (3, 136240040), (4, 102180030), (5, 81744024), (6, 68120020), (8, 51090015), (10, 40872012), (12, 34060010), (15, 27248008), (17, 24042360), (20, 20436006), (23, 17770440), (24, 17030005), (30, 13624004), (31, 13184520), (34, 12021180), (40, 10218003), (46, 8885220), (51, 8014120), (60, 6812002), (62, 6592260), (68, 6010590), (69, 5923480), (85, 4808472), (92, 4442610), (93, 4394840), (102, 4007060), (115, 3554088), (120, 3406001), (124, 3296130), (136, 3005295), (138, 2961740), (155, 2636904), (170, 2404236), (184, 2221305), (186, 2197420), (204, 2003530), (230, 1777044), (248, 1648065), (255, 1602824), (276, 1480870), (281, 1454520), (310, 1318452), (340, 1202118), (345, 1184696), (372, 1098710), (391, 1045320), (408, 1001765), (460, 888522), (465, 878968), (510, 801412), (527, 775560), (552, 740435), (562, 727260), (620, 659226), (680, 601059), (690, 592348), (713, 573240), (744, 549355), (782, 522660), (843, 484840), (920, 444261), (930, 439484), (1020, 400706), (1054, 387780), (1124, 363630), (1173, 348440), (1240, 329613), (1380, 296174), (1405, 290904), (1426, 286620), (1564, 261330), (1581, 258520), (1686, 242420), (1860, 219742), (1955, 209064), (2040, 200353), (2108, 193890), (2139, 191080), (2248, 181815), (2346, 174220), (2635, 155112), (2760, 148087), (2810, 145452), (2852, 143310), (3128, 130665), (3162, 129260), (3372, 121210), (3565, 114648), (3720, 109871), (3910, 104532), (4215, 96968), (4216, 96945), (4278, 95540), (4692, 87110), (4777, 85560), (5270, 77556), (5620, 72726), (5704, 71655), (5865, 69688), (6324, 64630), (6463, 63240), (6744, 60605), (7130, 57324), (7820, 52266), (7905, 51704), (8430, 48484), (8556, 47770), (8711, 46920), (9384, 43555), (9554, 42780), (10540, 38778), (10695, 38216), (11240, 36363), (11730, 34844), (12121, 33720), (12648, 32315), (12926, 31620), (14260, 28662), (14331, 28520), (15640, 26133), (15810, 25852), (16860, 24242), (17112, 23885), (17422, 23460), (19108, 21390), (19389, 21080)]