15286640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 38167200

約数和(自身を除く): 22880560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 113, 152, 178, 190, 226, 304, 356, 380, 445, 452, 565, 712, 760, 890, 904, 1130, 1424, 1520, 1691, 1780, 1808, 2147, 2260, 3382, 3560, 4294, 4520, 6764, 7120, 8455, 8588, 9040, 10057, 10735, 13528, 16910, 17176, 20114, 21470, 27056, 33820, 34352, 40228, 42940, 50285, 67640, 80456, 85880, 100570, 135280, 160912, 171760, 191083, 201140, 382166, 402280, 764332, 804560, 955415, 1528664, 1910830, 3057328, 3821660, 7643320, 15286640]

約数ペア:

[(1, 15286640), (2, 7643320), (4, 3821660), (5, 3057328), (8, 1910830), (10, 1528664), (16, 955415), (19, 804560), (20, 764332), (38, 402280), (40, 382166), (76, 201140), (80, 191083), (89, 171760), (95, 160912), (113, 135280), (152, 100570), (178, 85880), (190, 80456), (226, 67640), (304, 50285), (356, 42940), (380, 40228), (445, 34352), (452, 33820), (565, 27056), (712, 21470), (760, 20114), (890, 17176), (904, 16910), (1130, 13528), (1424, 10735), (1520, 10057), (1691, 9040), (1780, 8588), (1808, 8455), (2147, 7120), (2260, 6764), (3382, 4520), (3560, 4294)]