680723940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{1063}}^1$

素因数の和:1909

約数の個数: 96

約数和(自身を含む): 2057078016

約数和(自身を除く): 1376354076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 821, 1063, 1642, 2126, 2463, 3189, 3284, 4105, 4252, 4926, 5315, 6378, 8210, 9852, 10630, 10673, 12315, 12756, 13819, 15945, 16420, 21260, 21346, 24630, 27638, 31890, 32019, 41457, 42692, 49260, 53365, 55276, 63780, 64038, 69095, 82914, 106730, 128076, 138190, 160095, 165828, 207285, 213460, 276380, 320190, 414570, 640380, 829140, 872723, 1745446, 2618169, 3490892, 4363615, 5236338, 8727230, 10472676, 11345399, 13090845, 17454460, 22690798, 26181690, 34036197, 45381596, 52363380, 56726995, 68072394, 113453990, 136144788, 170180985, 226907980, 340361970, 680723940]

約数ペア:

[(1, 680723940), (2, 340361970), (3, 226907980), (4, 170180985), (5, 136144788), (6, 113453990), (10, 68072394), (12, 56726995), (13, 52363380), (15, 45381596), (20, 34036197), (26, 26181690), (30, 22690798), (39, 17454460), (52, 13090845), (60, 11345399), (65, 10472676), (78, 8727230), (130, 5236338), (156, 4363615), (195, 3490892), (260, 2618169), (390, 1745446), (780, 872723), (821, 829140), (1063, 640380), (1642, 414570), (2126, 320190), (2463, 276380), (3189, 213460), (3284, 207285), (4105, 165828), (4252, 160095), (4926, 138190), (5315, 128076), (6378, 106730), (8210, 82914), (9852, 69095), (10630, 64038), (10673, 63780), (12315, 55276), (12756, 53365), (13819, 49260), (15945, 42692), (16420, 41457), (21260, 32019), (21346, 31890), (24630, 27638)]