669367640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{6691}}^1$

素因数の和:6804

約数の個数: 64

約数和(自身を含む): 1568337120

約数和(自身を除く): 898969480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 205, 244, 305, 328, 410, 488, 610, 820, 1220, 1640, 2440, 2501, 5002, 6691, 10004, 12505, 13382, 20008, 25010, 26764, 33455, 50020, 53528, 66910, 100040, 133820, 267640, 274331, 408151, 548662, 816302, 1097324, 1371655, 1632604, 2040755, 2194648, 2743310, 3265208, 4081510, 5486620, 8163020, 10973240, 16326040, 16734191, 33468382, 66936764, 83670955, 133873528, 167341910, 334683820, 669367640]

約数ペア:

[(1, 669367640), (2, 334683820), (4, 167341910), (5, 133873528), (8, 83670955), (10, 66936764), (20, 33468382), (40, 16734191), (41, 16326040), (61, 10973240), (82, 8163020), (122, 5486620), (164, 4081510), (205, 3265208), (244, 2743310), (305, 2194648), (328, 2040755), (410, 1632604), (488, 1371655), (610, 1097324), (820, 816302), (1220, 548662), (1640, 408151), (2440, 274331), (2501, 267640), (5002, 133820), (6691, 100040), (10004, 66910), (12505, 53528), (13382, 50020), (20008, 33455), (25010, 26764)]