28025970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{421}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 77296896

約数和(自身を除く): 49270926

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 317, 421, 634, 842, 951, 1263, 1585, 1902, 2105, 2219, 2526, 2947, 3170, 4210, 4438, 4755, 5894, 6315, 6657, 8841, 9510, 11095, 12630, 13314, 14735, 17682, 22190, 29470, 33285, 44205, 66570, 88410, 133457, 266914, 400371, 667285, 800742, 934199, 1334570, 1868398, 2001855, 2802597, 4003710, 4670995, 5605194, 9341990, 14012985, 28025970]

約数ペア:

[(1, 28025970), (2, 14012985), (3, 9341990), (5, 5605194), (6, 4670995), (7, 4003710), (10, 2802597), (14, 2001855), (15, 1868398), (21, 1334570), (30, 934199), (35, 800742), (42, 667285), (70, 400371), (105, 266914), (210, 133457), (317, 88410), (421, 66570), (634, 44205), (842, 33285), (951, 29470), (1263, 22190), (1585, 17682), (1902, 14735), (2105, 13314), (2219, 12630), (2526, 11095), (2947, 9510), (3170, 8841), (4210, 6657), (4438, 6315), (4755, 5894)]