641668560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205663}}^1$

素因数の和:205692

約数の個数: 80

約数和(自身を含む): 2142196224

約数和(自身を除く): 1500527664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 205663, 411326, 616989, 822652, 1028315, 1233978, 1645304, 2056630, 2467956, 2673619, 3084945, 3290608, 4113260, 4935912, 5347238, 6169890, 8020857, 8226520, 9871824, 10694476, 12339780, 13368095, 16041714, 16453040, 21388952, 24679560, 26736190, 32083428, 40104285, 42777904, 49359120, 53472380, 64166856, 80208570, 106944760, 128333712, 160417140, 213889520, 320834280, 641668560]

約数ペア:

[(1, 641668560), (2, 320834280), (3, 213889520), (4, 160417140), (5, 128333712), (6, 106944760), (8, 80208570), (10, 64166856), (12, 53472380), (13, 49359120), (15, 42777904), (16, 40104285), (20, 32083428), (24, 26736190), (26, 24679560), (30, 21388952), (39, 16453040), (40, 16041714), (48, 13368095), (52, 12339780), (60, 10694476), (65, 9871824), (78, 8226520), (80, 8020857), (104, 6169890), (120, 5347238), (130, 4935912), (156, 4113260), (195, 3290608), (208, 3084945), (240, 2673619), (260, 2467956), (312, 2056630), (390, 1645304), (520, 1233978), (624, 1028315), (780, 822652), (1040, 616989), (1560, 411326), (3120, 205663)]