20004568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3557}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 40561200

約数和(自身を除く): 20556632

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3557, 5624, 7114, 14228, 28456, 67583, 131609, 135166, 263218, 270332, 526436, 540664, 1052872, 2500571, 5001142, 10002284, 20004568]

約数ペア:

[(1, 20004568), (2, 10002284), (4, 5001142), (8, 2500571), (19, 1052872), (37, 540664), (38, 526436), (74, 270332), (76, 263218), (148, 135166), (152, 131609), (296, 67583), (703, 28456), (1406, 14228), (2812, 7114), (3557, 5624)]