390234490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{14621}}^1$

素因数の和:14802

約数の個数: 32

約数和(自身を含む): 748529424

約数和(自身を除く): 358294934

約数列:

[1, 2, 5, 10, 17, 34, 85, 157, 170, 314, 785, 1570, 2669, 5338, 13345, 14621, 26690, 29242, 73105, 146210, 248557, 497114, 1242785, 2295497, 2485570, 4590994, 11477485, 22954970, 39023449, 78046898, 195117245, 390234490]

約数ペア:

[(1, 390234490), (2, 195117245), (5, 78046898), (10, 39023449), (17, 22954970), (34, 11477485), (85, 4590994), (157, 2485570), (170, 2295497), (314, 1242785), (785, 497114), (1570, 248557), (2669, 146210), (5338, 73105), (13345, 29242), (14621, 26690)]