4101640

素因数分解:

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

素因数の和:154

約数の個数: 48

約数和(自身を含む): 9614340

約数和(自身を除く): 5512700

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, 1681, 2440, 2501, 3362, 5002, 6724, 8405, 10004, 12505, 13448, 16810, 20008, 25010, 33620, 50020, 67240, 100040, 102541, 205082, 410164, 512705, 820328, 1025410, 2050820, 4101640]

約数ペア:

[(1, 4101640), (2, 2050820), (4, 1025410), (5, 820328), (8, 512705), (10, 410164), (20, 205082), (40, 102541), (41, 100040), (61, 67240), (82, 50020), (122, 33620), (164, 25010), (205, 20008), (244, 16810), (305, 13448), (328, 12505), (410, 10004), (488, 8405), (610, 6724), (820, 5002), (1220, 3362), (1640, 2501), (1681, 2440)]