20809614532

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{367739}}^1$

素因数の和:367840

約数の個数: 48

約数和(自身を含む): 43493345280

約数和(自身を除く): 22683730748

約数列:

[1, 2, 4, 7, 14, 28, 43, 47, 86, 94, 172, 188, 301, 329, 602, 658, 1204, 1316, 2021, 4042, 8084, 14147, 28294, 56588, 367739, 735478, 1470956, 2574173, 5148346, 10296692, 15812777, 17283733, 31625554, 34567466, 63251108, 69134932, 110689439, 120986131, 221378878, 241972262, 442757756, 483944524, 743200519, 1486401038, 2972802076, 5202403633, 10404807266, 20809614532]

約数ペア:

[(1, 20809614532), (2, 10404807266), (4, 5202403633), (7, 2972802076), (14, 1486401038), (28, 743200519), (43, 483944524), (47, 442757756), (86, 241972262), (94, 221378878), (172, 120986131), (188, 110689439), (301, 69134932), (329, 63251108), (602, 34567466), (658, 31625554), (1204, 17283733), (1316, 15812777), (2021, 10296692), (4042, 5148346), (8084, 2574173), (14147, 1470956), (28294, 735478), (56588, 367739)]