78390320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 191154432

約数和(自身を除く): 112764112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 433, 496, 584, 620, 730, 866, 1168, 1240, 1460, 1732, 2165, 2263, 2480, 2920, 3464, 4330, 4526, 5840, 6928, 8660, 9052, 11315, 13423, 17320, 18104, 22630, 26846, 31609, 34640, 36208, 45260, 53692, 63218, 67115, 90520, 107384, 126436, 134230, 158045, 181040, 214768, 252872, 268460, 316090, 505744, 536920, 632180, 979879, 1073840, 1264360, 1959758, 2528720, 3919516, 4899395, 7839032, 9798790, 15678064, 19597580, 39195160, 78390320]

約数ペア:

[(1, 78390320), (2, 39195160), (4, 19597580), (5, 15678064), (8, 9798790), (10, 7839032), (16, 4899395), (20, 3919516), (31, 2528720), (40, 1959758), (62, 1264360), (73, 1073840), (80, 979879), (124, 632180), (146, 536920), (155, 505744), (248, 316090), (292, 268460), (310, 252872), (365, 214768), (433, 181040), (496, 158045), (584, 134230), (620, 126436), (730, 107384), (866, 90520), (1168, 67115), (1240, 63218), (1460, 53692), (1732, 45260), (2165, 36208), (2263, 34640), (2480, 31609), (2920, 26846), (3464, 22630), (4330, 18104), (4526, 17320), (5840, 13423), (6928, 11315), (8660, 9052)]