28445480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{631}}^1$

素因数の和:679

約数の個数: 96

約数和(自身を含む): 77811840

約数和(自身を除く): 49366360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 490, 631, 644, 805, 920, 980, 1127, 1262, 1288, 1610, 1960, 2254, 2524, 3155, 3220, 4417, 4508, 5048, 5635, 6310, 6440, 8834, 9016, 11270, 12620, 14513, 17668, 22085, 22540, 25240, 29026, 30919, 35336, 44170, 45080, 58052, 61838, 72565, 88340, 101591, 116104, 123676, 145130, 154595, 176680, 203182, 247352, 290260, 309190, 406364, 507955, 580520, 618380, 711137, 812728, 1015910, 1236760, 1422274, 2031820, 2844548, 3555685, 4063640, 5689096, 7111370, 14222740, 28445480]

約数ペア:

[(1, 28445480), (2, 14222740), (4, 7111370), (5, 5689096), (7, 4063640), (8, 3555685), (10, 2844548), (14, 2031820), (20, 1422274), (23, 1236760), (28, 1015910), (35, 812728), (40, 711137), (46, 618380), (49, 580520), (56, 507955), (70, 406364), (92, 309190), (98, 290260), (115, 247352), (140, 203182), (161, 176680), (184, 154595), (196, 145130), (230, 123676), (245, 116104), (280, 101591), (322, 88340), (392, 72565), (460, 61838), (490, 58052), (631, 45080), (644, 44170), (805, 35336), (920, 30919), (980, 29026), (1127, 25240), (1262, 22540), (1288, 22085), (1610, 17668), (1960, 14513), (2254, 12620), (2524, 11270), (3155, 9016), (3220, 8834), (4417, 6440), (4508, 6310), (5048, 5635)]