28888910440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1\times {\mathrm{1607}}^1$

素因数の和:2003

約数の個数: 128

約数和(自身を含む): 70799339520

約数和(自身を除く): 41910429080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 191, 260, 362, 382, 520, 724, 764, 905, 955, 1448, 1528, 1607, 1810, 1910, 2353, 2483, 3214, 3620, 3820, 4706, 4966, 6428, 7240, 7640, 8035, 9412, 9932, 11765, 12415, 12856, 16070, 18824, 19864, 20891, 23530, 24830, 32140, 34571, 41782, 47060, 49660, 64280, 69142, 83564, 94120, 99320, 104455, 138284, 167128, 172855, 208910, 276568, 290867, 306937, 345710, 417820, 449423, 581734, 613874, 691420, 835640, 898846, 1163468, 1227748, 1382840, 1454335, 1534685, 1797692, 2247115, 2326936, 2455496, 2908670, 3069370, 3595384, 3781271, 3990181, 4494230, 5817340, 6138740, 7562542, 7980362, 8988460, 11634680, 12277480, 15125084, 15960724, 17976920, 18906355, 19950905, 30250168, 31921448, 37812710, 39901810, 55555597, 75625420, 79803620, 111111194, 151250840, 159607240, 222222388, 277777985, 444444776, 555555970, 722222761, 1111111940, 1444445522, 2222223880, 2888891044, 3611113805, 5777782088, 7222227610, 14444455220, 28888910440]

約数ペア:

[(1, 28888910440), (2, 14444455220), (4, 7222227610), (5, 5777782088), (8, 3611113805), (10, 2888891044), (13, 2222223880), (20, 1444445522), (26, 1111111940), (40, 722222761), (52, 555555970), (65, 444444776), (104, 277777985), (130, 222222388), (181, 159607240), (191, 151250840), (260, 111111194), (362, 79803620), (382, 75625420), (520, 55555597), (724, 39901810), (764, 37812710), (905, 31921448), (955, 30250168), (1448, 19950905), (1528, 18906355), (1607, 17976920), (1810, 15960724), (1910, 15125084), (2353, 12277480), (2483, 11634680), (3214, 8988460), (3620, 7980362), (3820, 7562542), (4706, 6138740), (4966, 5817340), (6428, 4494230), (7240, 3990181), (7640, 3781271), (8035, 3595384), (9412, 3069370), (9932, 2908670), (11765, 2455496), (12415, 2326936), (12856, 2247115), (16070, 1797692), (18824, 1534685), (19864, 1454335), (20891, 1382840), (23530, 1227748), (24830, 1163468), (32140, 898846), (34571, 835640), (41782, 691420), (47060, 613874), (49660, 581734), (64280, 449423), (69142, 417820), (83564, 345710), (94120, 306937), (99320, 290867), (104455, 276568), (138284, 208910), (167128, 172855)]