64998320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26209}}^1$

素因数の和:26253

約数の個数: 40

約数和(自身を含む): 156001920

約数和(自身を除く): 91003600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26209, 52418, 104836, 131045, 209672, 262090, 419344, 524180, 812479, 1048360, 1624958, 2096720, 3249916, 4062395, 6499832, 8124790, 12999664, 16249580, 32499160, 64998320]

約数ペア:

[(1, 64998320), (2, 32499160), (4, 16249580), (5, 12999664), (8, 8124790), (10, 6499832), (16, 4062395), (20, 3249916), (31, 2096720), (40, 1624958), (62, 1048360), (80, 812479), (124, 524180), (155, 419344), (248, 262090), (310, 209672), (496, 131045), (620, 104836), (1240, 52418), (2480, 26209)]