28164900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 82050304

約数和(自身を除く): 53885404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 223, 300, 421, 446, 669, 842, 892, 1115, 1263, 1338, 1684, 2105, 2230, 2526, 2676, 3345, 4210, 4460, 5052, 5575, 6315, 6690, 8420, 10525, 11150, 12630, 13380, 16725, 21050, 22300, 25260, 31575, 33450, 42100, 63150, 66900, 93883, 126300, 187766, 281649, 375532, 469415, 563298, 938830, 1126596, 1408245, 1877660, 2347075, 2816490, 4694150, 5632980, 7041225, 9388300, 14082450, 28164900]

約数ペア:

[(1, 28164900), (2, 14082450), (3, 9388300), (4, 7041225), (5, 5632980), (6, 4694150), (10, 2816490), (12, 2347075), (15, 1877660), (20, 1408245), (25, 1126596), (30, 938830), (50, 563298), (60, 469415), (75, 375532), (100, 281649), (150, 187766), (223, 126300), (300, 93883), (421, 66900), (446, 63150), (669, 42100), (842, 33450), (892, 31575), (1115, 25260), (1263, 22300), (1338, 21050), (1684, 16725), (2105, 13380), (2230, 12630), (2526, 11150), (2676, 10525), (3345, 8420), (4210, 6690), (4460, 6315), (5052, 5575)]