20701620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2447}}^1$

素因数の和:2509

約数の個数: 72

約数和(自身を含む): 64157184

約数和(自身を除く): 43455564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2447, 2820, 4230, 4894, 7341, 8460, 9788, 12235, 14682, 22023, 24470, 29364, 36705, 44046, 48940, 73410, 88092, 110115, 115009, 146820, 220230, 230018, 345027, 440460, 460036, 575045, 690054, 1035081, 1150090, 1380108, 1725135, 2070162, 2300180, 3450270, 4140324, 5175405, 6900540, 10350810, 20701620]

約数ペア:

[(1, 20701620), (2, 10350810), (3, 6900540), (4, 5175405), (5, 4140324), (6, 3450270), (9, 2300180), (10, 2070162), (12, 1725135), (15, 1380108), (18, 1150090), (20, 1035081), (30, 690054), (36, 575045), (45, 460036), (47, 440460), (60, 345027), (90, 230018), (94, 220230), (141, 146820), (180, 115009), (188, 110115), (235, 88092), (282, 73410), (423, 48940), (470, 44046), (564, 36705), (705, 29364), (846, 24470), (940, 22023), (1410, 14682), (1692, 12235), (2115, 9788), (2447, 8460), (2820, 7341), (4230, 4894)]