90350000

素因数分解:

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

素因数の和:185

約数の個数: 120

約数和(自身を含む): 237328560

約数和(自身を除く): 146978560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 139, 200, 208, 250, 260, 278, 325, 400, 500, 520, 556, 625, 650, 695, 1000, 1040, 1112, 1250, 1300, 1390, 1625, 1807, 2000, 2224, 2500, 2600, 2780, 3125, 3250, 3475, 3614, 5000, 5200, 5560, 6250, 6500, 6950, 7228, 8125, 9035, 10000, 11120, 12500, 13000, 13900, 14456, 16250, 17375, 18070, 25000, 26000, 27800, 28912, 32500, 34750, 36140, 40625, 45175, 50000, 55600, 65000, 69500, 72280, 81250, 86875, 90350, 130000, 139000, 144560, 162500, 173750, 180700, 225875, 278000, 325000, 347500, 361400, 434375, 451750, 650000, 695000, 722800, 868750, 903500, 1129375, 1390000, 1737500, 1807000, 2258750, 3475000, 3614000, 4517500, 5646875, 6950000, 9035000, 11293750, 18070000, 22587500, 45175000, 90350000]

約数ペア:

[(1, 90350000), (2, 45175000), (4, 22587500), (5, 18070000), (8, 11293750), (10, 9035000), (13, 6950000), (16, 5646875), (20, 4517500), (25, 3614000), (26, 3475000), (40, 2258750), (50, 1807000), (52, 1737500), (65, 1390000), (80, 1129375), (100, 903500), (104, 868750), (125, 722800), (130, 695000), (139, 650000), (200, 451750), (208, 434375), (250, 361400), (260, 347500), (278, 325000), (325, 278000), (400, 225875), (500, 180700), (520, 173750), (556, 162500), (625, 144560), (650, 139000), (695, 130000), (1000, 90350), (1040, 86875), (1112, 81250), (1250, 72280), (1300, 69500), (1390, 65000), (1625, 55600), (1807, 50000), (2000, 45175), (2224, 40625), (2500, 36140), (2600, 34750), (2780, 32500), (3125, 28912), (3250, 27800), (3475, 26000), (3614, 25000), (5000, 18070), (5200, 17375), (5560, 16250), (6250, 14456), (6500, 13900), (6950, 13000), (7228, 12500), (8125, 11120), (9035, 10000)]