1641640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:83

約数の個数: 128

約数和(自身を含む): 5080320

約数和(自身を除く): 3438680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 41, 44, 52, 55, 56, 65, 70, 77, 82, 88, 91, 104, 110, 130, 140, 143, 154, 164, 182, 205, 220, 260, 280, 286, 287, 308, 328, 364, 385, 410, 440, 451, 455, 520, 533, 572, 574, 616, 715, 728, 770, 820, 902, 910, 1001, 1066, 1144, 1148, 1430, 1435, 1540, 1640, 1804, 1820, 2002, 2132, 2255, 2296, 2665, 2860, 2870, 3080, 3157, 3608, 3640, 3731, 4004, 4264, 4510, 5005, 5330, 5720, 5740, 5863, 6314, 7462, 8008, 9020, 10010, 10660, 11480, 11726, 12628, 14924, 15785, 18040, 18655, 20020, 21320, 23452, 25256, 29315, 29848, 31570, 37310, 40040, 41041, 46904, 58630, 63140, 74620, 82082, 117260, 126280, 149240, 164164, 205205, 234520, 328328, 410410, 820820, 1641640]

約数ペア:

[(1, 1641640), (2, 820820), (4, 410410), (5, 328328), (7, 234520), (8, 205205), (10, 164164), (11, 149240), (13, 126280), (14, 117260), (20, 82082), (22, 74620), (26, 63140), (28, 58630), (35, 46904), (40, 41041), (41, 40040), (44, 37310), (52, 31570), (55, 29848), (56, 29315), (65, 25256), (70, 23452), (77, 21320), (82, 20020), (88, 18655), (91, 18040), (104, 15785), (110, 14924), (130, 12628), (140, 11726), (143, 11480), (154, 10660), (164, 10010), (182, 9020), (205, 8008), (220, 7462), (260, 6314), (280, 5863), (286, 5740), (287, 5720), (308, 5330), (328, 5005), (364, 4510), (385, 4264), (410, 4004), (440, 3731), (451, 3640), (455, 3608), (520, 3157), (533, 3080), (572, 2870), (574, 2860), (616, 2665), (715, 2296), (728, 2255), (770, 2132), (820, 2002), (902, 1820), (910, 1804), (1001, 1640), (1066, 1540), (1144, 1435), (1148, 1430)]