28470780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^3$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 97231680

約数和(自身を除く): 68760900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 39, 45, 46, 52, 60, 65, 69, 78, 90, 92, 115, 117, 130, 138, 156, 180, 195, 207, 230, 234, 260, 276, 299, 345, 390, 414, 460, 468, 529, 585, 598, 690, 780, 828, 897, 1035, 1058, 1170, 1196, 1380, 1495, 1587, 1794, 2070, 2116, 2340, 2645, 2691, 2990, 3174, 3588, 4140, 4485, 4761, 5290, 5382, 5980, 6348, 6877, 7935, 8970, 9522, 10580, 10764, 12167, 13455, 13754, 15870, 17940, 19044, 20631, 23805, 24334, 26910, 27508, 31740, 34385, 36501, 41262, 47610, 48668, 53820, 60835, 61893, 68770, 73002, 82524, 95220, 103155, 109503, 121670, 123786, 137540, 146004, 158171, 182505, 206310, 219006, 243340, 247572, 309465, 316342, 365010, 412620, 438012, 474513, 547515, 618930, 632684, 730020, 790855, 949026, 1095030, 1237860, 1423539, 1581710, 1898052, 2190060, 2372565, 2847078, 3163420, 4745130, 5694156, 7117695, 9490260, 14235390, 28470780]

約数ペア:

[(1, 28470780), (2, 14235390), (3, 9490260), (4, 7117695), (5, 5694156), (6, 4745130), (9, 3163420), (10, 2847078), (12, 2372565), (13, 2190060), (15, 1898052), (18, 1581710), (20, 1423539), (23, 1237860), (26, 1095030), (30, 949026), (36, 790855), (39, 730020), (45, 632684), (46, 618930), (52, 547515), (60, 474513), (65, 438012), (69, 412620), (78, 365010), (90, 316342), (92, 309465), (115, 247572), (117, 243340), (130, 219006), (138, 206310), (156, 182505), (180, 158171), (195, 146004), (207, 137540), (230, 123786), (234, 121670), (260, 109503), (276, 103155), (299, 95220), (345, 82524), (390, 73002), (414, 68770), (460, 61893), (468, 60835), (529, 53820), (585, 48668), (598, 47610), (690, 41262), (780, 36501), (828, 34385), (897, 31740), (1035, 27508), (1058, 26910), (1170, 24334), (1196, 23805), (1380, 20631), (1495, 19044), (1587, 17940), (1794, 15870), (2070, 13754), (2116, 13455), (2340, 12167), (2645, 10764), (2691, 10580), (2990, 9522), (3174, 8970), (3588, 7935), (4140, 6877), (4485, 6348), (4761, 5980), (5290, 5382)]