208520520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{383}}^1$

素因数の和:759

約数の個数: 128

約数和(自身を含む): 677376000

約数和(自身を除く): 468855480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 349, 383, 390, 520, 698, 766, 780, 1047, 1149, 1396, 1532, 1560, 1745, 1915, 2094, 2298, 2792, 3064, 3490, 3830, 4188, 4537, 4596, 4979, 5235, 5745, 6980, 7660, 8376, 9074, 9192, 9958, 10470, 11490, 13611, 13960, 14937, 15320, 18148, 19916, 20940, 22685, 22980, 24895, 27222, 29874, 36296, 39832, 41880, 45370, 45960, 49790, 54444, 59748, 68055, 74685, 90740, 99580, 108888, 119496, 133667, 136110, 149370, 181480, 199160, 267334, 272220, 298740, 401001, 534668, 544440, 597480, 668335, 802002, 1069336, 1336670, 1604004, 1737671, 2005005, 2673340, 3208008, 3475342, 4010010, 5213013, 5346680, 6950684, 8020020, 8688355, 10426026, 13901368, 16040040, 17376710, 20852052, 26065065, 34753420, 41704104, 52130130, 69506840, 104260260, 208520520]

約数ペア:

[(1, 208520520), (2, 104260260), (3, 69506840), (4, 52130130), (5, 41704104), (6, 34753420), (8, 26065065), (10, 20852052), (12, 17376710), (13, 16040040), (15, 13901368), (20, 10426026), (24, 8688355), (26, 8020020), (30, 6950684), (39, 5346680), (40, 5213013), (52, 4010010), (60, 3475342), (65, 3208008), (78, 2673340), (104, 2005005), (120, 1737671), (130, 1604004), (156, 1336670), (195, 1069336), (260, 802002), (312, 668335), (349, 597480), (383, 544440), (390, 534668), (520, 401001), (698, 298740), (766, 272220), (780, 267334), (1047, 199160), (1149, 181480), (1396, 149370), (1532, 136110), (1560, 133667), (1745, 119496), (1915, 108888), (2094, 99580), (2298, 90740), (2792, 74685), (3064, 68055), (3490, 59748), (3830, 54444), (4188, 49790), (4537, 45960), (4596, 45370), (4979, 41880), (5235, 39832), (5745, 36296), (6980, 29874), (7660, 27222), (8376, 24895), (9074, 22980), (9192, 22685), (9958, 20940), (10470, 19916), (11490, 18148), (13611, 15320), (13960, 14937)]