28484040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:108

約数の個数: 192

約数和(自身を含む): 100094400

約数和(自身を除く): 71610360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 31, 38, 39, 40, 52, 57, 60, 62, 65, 76, 78, 93, 95, 104, 114, 120, 124, 130, 152, 155, 156, 186, 190, 195, 228, 247, 248, 260, 285, 310, 312, 372, 380, 390, 403, 456, 465, 494, 520, 570, 589, 620, 741, 744, 760, 780, 806, 930, 961, 988, 1140, 1178, 1209, 1235, 1240, 1482, 1560, 1612, 1767, 1860, 1922, 1976, 2015, 2280, 2356, 2418, 2470, 2883, 2945, 2964, 3224, 3534, 3705, 3720, 3844, 4030, 4712, 4805, 4836, 4940, 5766, 5890, 5928, 6045, 7068, 7410, 7657, 7688, 8060, 8835, 9610, 9672, 9880, 11532, 11780, 12090, 12493, 14136, 14415, 14820, 15314, 16120, 17670, 18259, 19220, 22971, 23064, 23560, 24180, 24986, 28830, 29640, 30628, 35340, 36518, 37479, 38285, 38440, 45942, 48360, 49972, 54777, 57660, 61256, 62465, 70680, 73036, 74958, 76570, 91295, 91884, 99944, 109554, 114855, 115320, 124930, 146072, 149916, 153140, 182590, 183768, 187395, 219108, 229710, 237367, 249860, 273885, 299832, 306280, 365180, 374790, 438216, 459420, 474734, 499720, 547770, 712101, 730360, 749580, 918840, 949468, 1095540, 1186835, 1424202, 1499160, 1898936, 2191080, 2373670, 2848404, 3560505, 4747340, 5696808, 7121010, 9494680, 14242020, 28484040]

約数ペア:

[(1, 28484040), (2, 14242020), (3, 9494680), (4, 7121010), (5, 5696808), (6, 4747340), (8, 3560505), (10, 2848404), (12, 2373670), (13, 2191080), (15, 1898936), (19, 1499160), (20, 1424202), (24, 1186835), (26, 1095540), (30, 949468), (31, 918840), (38, 749580), (39, 730360), (40, 712101), (52, 547770), (57, 499720), (60, 474734), (62, 459420), (65, 438216), (76, 374790), (78, 365180), (93, 306280), (95, 299832), (104, 273885), (114, 249860), (120, 237367), (124, 229710), (130, 219108), (152, 187395), (155, 183768), (156, 182590), (186, 153140), (190, 149916), (195, 146072), (228, 124930), (247, 115320), (248, 114855), (260, 109554), (285, 99944), (310, 91884), (312, 91295), (372, 76570), (380, 74958), (390, 73036), (403, 70680), (456, 62465), (465, 61256), (494, 57660), (520, 54777), (570, 49972), (589, 48360), (620, 45942), (741, 38440), (744, 38285), (760, 37479), (780, 36518), (806, 35340), (930, 30628), (961, 29640), (988, 28830), (1140, 24986), (1178, 24180), (1209, 23560), (1235, 23064), (1240, 22971), (1482, 19220), (1560, 18259), (1612, 17670), (1767, 16120), (1860, 15314), (1922, 14820), (1976, 14415), (2015, 14136), (2280, 12493), (2356, 12090), (2418, 11780), (2470, 11532), (2883, 9880), (2945, 9672), (2964, 9610), (3224, 8835), (3534, 8060), (3705, 7688), (3720, 7657), (3844, 7410), (4030, 7068), (4712, 6045), (4805, 5928), (4836, 5890), (4940, 5766)]