20401470

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:391

約数の個数: 80

約数和(自身を含む): 55669680

約数和(自身を除く): 35268210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 89, 90, 135, 162, 178, 267, 270, 283, 405, 445, 534, 566, 801, 810, 849, 890, 1335, 1415, 1602, 1698, 2403, 2547, 2670, 2830, 4005, 4245, 4806, 5094, 7209, 7641, 8010, 8490, 12015, 12735, 14418, 15282, 22923, 24030, 25187, 25470, 36045, 38205, 45846, 50374, 72090, 75561, 76410, 114615, 125935, 151122, 226683, 229230, 251870, 377805, 453366, 680049, 755610, 1133415, 1360098, 2040147, 2266830, 3400245, 4080294, 6800490, 10200735, 20401470]

約数ペア:

[(1, 20401470), (2, 10200735), (3, 6800490), (5, 4080294), (6, 3400245), (9, 2266830), (10, 2040147), (15, 1360098), (18, 1133415), (27, 755610), (30, 680049), (45, 453366), (54, 377805), (81, 251870), (89, 229230), (90, 226683), (135, 151122), (162, 125935), (178, 114615), (267, 76410), (270, 75561), (283, 72090), (405, 50374), (445, 45846), (534, 38205), (566, 36045), (801, 25470), (810, 25187), (849, 24030), (890, 22923), (1335, 15282), (1415, 14418), (1602, 12735), (1698, 12015), (2403, 8490), (2547, 8010), (2670, 7641), (2830, 7209), (4005, 5094), (4245, 4806)]