51720120

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:356

約数の個数: 192

約数和(自身を含む): 185159520

約数和(自身を除く): 133439400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 243, 255, 270, 306, 313, 324, 340, 360, 405, 408, 459, 486, 510, 540, 612, 626, 648, 680, 765, 810, 918, 939, 972, 1020, 1080, 1215, 1224, 1252, 1377, 1530, 1565, 1620, 1836, 1878, 1944, 2040, 2295, 2430, 2504, 2754, 2817, 3060, 3130, 3240, 3672, 3756, 4131, 4590, 4695, 4860, 5321, 5508, 5634, 6120, 6260, 6885, 7512, 8262, 8451, 9180, 9390, 9720, 10642, 11016, 11268, 12520, 13770, 14085, 15963, 16524, 16902, 18360, 18780, 20655, 21284, 22536, 25353, 26605, 27540, 28170, 31926, 33048, 33804, 37560, 41310, 42255, 42568, 47889, 50706, 53210, 55080, 56340, 63852, 67608, 76059, 79815, 82620, 84510, 95778, 101412, 106420, 112680, 126765, 127704, 143667, 152118, 159630, 165240, 169020, 191556, 202824, 212840, 239445, 253530, 287334, 304236, 319260, 338040, 380295, 383112, 431001, 478890, 507060, 574668, 608472, 638520, 718335, 760590, 862002, 957780, 1014120, 1149336, 1293003, 1436670, 1521180, 1724004, 1915560, 2155005, 2586006, 2873340, 3042360, 3448008, 4310010, 5172012, 5746680, 6465015, 8620020, 10344024, 12930030, 17240040, 25860060, 51720120]

約数ペア:

[(1, 51720120), (2, 25860060), (3, 17240040), (4, 12930030), (5, 10344024), (6, 8620020), (8, 6465015), (9, 5746680), (10, 5172012), (12, 4310010), (15, 3448008), (17, 3042360), (18, 2873340), (20, 2586006), (24, 2155005), (27, 1915560), (30, 1724004), (34, 1521180), (36, 1436670), (40, 1293003), (45, 1149336), (51, 1014120), (54, 957780), (60, 862002), (68, 760590), (72, 718335), (81, 638520), (85, 608472), (90, 574668), (102, 507060), (108, 478890), (120, 431001), (135, 383112), (136, 380295), (153, 338040), (162, 319260), (170, 304236), (180, 287334), (204, 253530), (216, 239445), (243, 212840), (255, 202824), (270, 191556), (306, 169020), (313, 165240), (324, 159630), (340, 152118), (360, 143667), (405, 127704), (408, 126765), (459, 112680), (486, 106420), (510, 101412), (540, 95778), (612, 84510), (626, 82620), (648, 79815), (680, 76059), (765, 67608), (810, 63852), (918, 56340), (939, 55080), (972, 53210), (1020, 50706), (1080, 47889), (1215, 42568), (1224, 42255), (1252, 41310), (1377, 37560), (1530, 33804), (1565, 33048), (1620, 31926), (1836, 28170), (1878, 27540), (1944, 26605), (2040, 25353), (2295, 22536), (2430, 21284), (2504, 20655), (2754, 18780), (2817, 18360), (3060, 16902), (3130, 16524), (3240, 15963), (3672, 14085), (3756, 13770), (4131, 12520), (4590, 11268), (4695, 11016), (4860, 10642), (5321, 9720), (5508, 9390), (5634, 9180), (6120, 8451), (6260, 8262), (6885, 7512)]