81194980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2927}}^1$

素因数の和:3028

約数の個数: 48

約数和(自身を含む): 182004480

約数和(自身を除く): 100809500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1460, 2774, 2927, 5548, 5854, 6935, 11708, 13870, 14635, 27740, 29270, 55613, 58540, 111226, 213671, 222452, 278065, 427342, 556130, 854684, 1068355, 1112260, 2136710, 4059749, 4273420, 8119498, 16238996, 20298745, 40597490, 81194980]

約数ペア:

[(1, 81194980), (2, 40597490), (4, 20298745), (5, 16238996), (10, 8119498), (19, 4273420), (20, 4059749), (38, 2136710), (73, 1112260), (76, 1068355), (95, 854684), (146, 556130), (190, 427342), (292, 278065), (365, 222452), (380, 213671), (730, 111226), (1387, 58540), (1460, 55613), (2774, 29270), (2927, 27740), (5548, 14635), (5854, 13870), (6935, 11708)]