297972687640

素因数分解:

$2^3\times 5^1\times {\mathrm{9781}}^1\times {\mathrm{761611}}^1$

素因数の和:771403

約数の個数: 32

約数和(自身を含む): 670507972560

約数和(自身を除く): 372535284920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9781, 19562, 39124, 48905, 78248, 97810, 195620, 391240, 761611, 1523222, 3046444, 3808055, 6092888, 7616110, 15232220, 30464440, 7449317191, 14898634382, 29797268764, 37246585955, 59594537528, 74493171910, 148986343820, 297972687640]

約数ペア:

[(1, 297972687640), (2, 148986343820), (4, 74493171910), (5, 59594537528), (8, 37246585955), (10, 29797268764), (20, 14898634382), (40, 7449317191), (9781, 30464440), (19562, 15232220), (39124, 7616110), (48905, 6092888), (78248, 3808055), (97810, 3046444), (195620, 1523222), (391240, 761611)]