20168408072

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{3571}}^1$

素因数の和:3942

約数の個数: 64

約数和(自身を含む): 39480315840

約数和(自身を除く): 19311907768

約数列:

[1, 2, 4, 8, 41, 67, 82, 134, 164, 257, 268, 328, 514, 536, 1028, 2056, 2747, 3571, 5494, 7142, 10537, 10988, 14284, 17219, 21074, 21976, 28568, 34438, 42148, 68876, 84296, 137752, 146411, 239257, 292822, 478514, 585644, 705979, 917747, 957028, 1171288, 1411958, 1835494, 1914056, 2823916, 3670988, 5647832, 7341976, 9809537, 19619074, 37627627, 39238148, 61489049, 75255254, 78476296, 122978098, 150510508, 245956196, 301021016, 491912392, 2521051009, 5042102018, 10084204036, 20168408072]

約数ペア:

[(1, 20168408072), (2, 10084204036), (4, 5042102018), (8, 2521051009), (41, 491912392), (67, 301021016), (82, 245956196), (134, 150510508), (164, 122978098), (257, 78476296), (268, 75255254), (328, 61489049), (514, 39238148), (536, 37627627), (1028, 19619074), (2056, 9809537), (2747, 7341976), (3571, 5647832), (5494, 3670988), (7142, 2823916), (10537, 1914056), (10988, 1835494), (14284, 1411958), (17219, 1171288), (21074, 957028), (21976, 917747), (28568, 705979), (34438, 585644), (42148, 478514), (68876, 292822), (84296, 239257), (137752, 146411)]