722800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:170

約数の個数: 60

約数和(自身を含む): 1883560

約数和(自身を除く): 1160760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 139, 200, 208, 260, 278, 325, 400, 520, 556, 650, 695, 1040, 1112, 1300, 1390, 1807, 2224, 2600, 2780, 3475, 3614, 5200, 5560, 6950, 7228, 9035, 11120, 13900, 14456, 18070, 27800, 28912, 36140, 45175, 55600, 72280, 90350, 144560, 180700, 361400, 722800]

約数ペア:

[(1, 722800), (2, 361400), (4, 180700), (5, 144560), (8, 90350), (10, 72280), (13, 55600), (16, 45175), (20, 36140), (25, 28912), (26, 27800), (40, 18070), (50, 14456), (52, 13900), (65, 11120), (80, 9035), (100, 7228), (104, 6950), (130, 5560), (139, 5200), (200, 3614), (208, 3475), (260, 2780), (278, 2600), (325, 2224), (400, 1807), (520, 1390), (556, 1300), (650, 1112), (695, 1040)]