28918760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2927}}^1$

素因数の和:2970

約数の個数: 64

約数和(自身を含む): 73785600

約数和(自身を除く): 44866840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 2927, 4940, 5854, 9880, 11708, 14635, 23416, 29270, 38051, 55613, 58540, 76102, 111226, 117080, 152204, 190255, 222452, 278065, 304408, 380510, 444904, 556130, 722969, 761020, 1112260, 1445938, 1522040, 2224520, 2891876, 3614845, 5783752, 7229690, 14459380, 28918760]

約数ペア:

[(1, 28918760), (2, 14459380), (4, 7229690), (5, 5783752), (8, 3614845), (10, 2891876), (13, 2224520), (19, 1522040), (20, 1445938), (26, 1112260), (38, 761020), (40, 722969), (52, 556130), (65, 444904), (76, 380510), (95, 304408), (104, 278065), (130, 222452), (152, 190255), (190, 152204), (247, 117080), (260, 111226), (380, 76102), (494, 58540), (520, 55613), (760, 38051), (988, 29270), (1235, 23416), (1976, 14635), (2470, 11708), (2927, 9880), (4940, 5854)]