279291400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 678170880

約数和(自身を除く): 398879480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 107, 124, 155, 200, 214, 248, 310, 421, 428, 535, 620, 775, 842, 856, 1070, 1240, 1550, 1684, 2105, 2140, 2675, 3100, 3317, 3368, 4210, 4280, 5350, 6200, 6634, 8420, 10525, 10700, 13051, 13268, 16585, 16840, 21050, 21400, 26102, 26536, 33170, 42100, 45047, 52204, 65255, 66340, 82925, 84200, 90094, 104408, 130510, 132680, 165850, 180188, 225235, 261020, 326275, 331700, 360376, 450470, 522040, 652550, 663400, 900940, 1126175, 1305100, 1396457, 1801880, 2252350, 2610200, 2792914, 4504700, 5585828, 6982285, 9009400, 11171656, 13964570, 27929140, 34911425, 55858280, 69822850, 139645700, 279291400]

約数ペア:

[(1, 279291400), (2, 139645700), (4, 69822850), (5, 55858280), (8, 34911425), (10, 27929140), (20, 13964570), (25, 11171656), (31, 9009400), (40, 6982285), (50, 5585828), (62, 4504700), (100, 2792914), (107, 2610200), (124, 2252350), (155, 1801880), (200, 1396457), (214, 1305100), (248, 1126175), (310, 900940), (421, 663400), (428, 652550), (535, 522040), (620, 450470), (775, 360376), (842, 331700), (856, 326275), (1070, 261020), (1240, 225235), (1550, 180188), (1684, 165850), (2105, 132680), (2140, 130510), (2675, 104408), (3100, 90094), (3317, 84200), (3368, 82925), (4210, 66340), (4280, 65255), (5350, 52204), (6200, 45047), (6634, 42100), (8420, 33170), (10525, 26536), (10700, 26102), (13051, 21400), (13268, 21050), (16585, 16840)]