201521120

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4789}}^1$

素因数の和:5067

約数の個数: 48

約数和(自身を含む): 478003680

約数和(自身を除く): 276482560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 526, 1052, 1315, 2104, 2630, 4208, 4789, 5260, 8416, 9578, 10520, 19156, 21040, 23945, 38312, 42080, 47890, 76624, 95780, 153248, 191560, 383120, 766240, 1259507, 2519014, 5038028, 6297535, 10076056, 12595070, 20152112, 25190140, 40304224, 50380280, 100760560, 201521120]

約数ペア:

[(1, 201521120), (2, 100760560), (4, 50380280), (5, 40304224), (8, 25190140), (10, 20152112), (16, 12595070), (20, 10076056), (32, 6297535), (40, 5038028), (80, 2519014), (160, 1259507), (263, 766240), (526, 383120), (1052, 191560), (1315, 153248), (2104, 95780), (2630, 76624), (4208, 47890), (4789, 42080), (5260, 38312), (8416, 23945), (9578, 21040), (10520, 19156)]