326786020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{20921}}^1$

素因数の和:21012

約数の個数: 48

約数和(自身を含む): 759217536

約数和(自身を除く): 432431516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 20921, 41842, 83684, 104605, 209210, 230131, 418420, 460262, 920524, 1150655, 1485391, 2301310, 2970782, 4602620, 5941564, 7426955, 14853910, 16339301, 29707820, 32678602, 65357204, 81696505, 163393010, 326786020]

約数ペア:

[(1, 326786020), (2, 163393010), (4, 81696505), (5, 65357204), (10, 32678602), (11, 29707820), (20, 16339301), (22, 14853910), (44, 7426955), (55, 5941564), (71, 4602620), (110, 2970782), (142, 2301310), (220, 1485391), (284, 1150655), (355, 920524), (710, 460262), (781, 418420), (1420, 230131), (1562, 209210), (3124, 104605), (3905, 83684), (7810, 41842), (15620, 20921)]