668990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 1451520

約数和(自身を除く): 782530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 503, 665, 1006, 1330, 2515, 3521, 5030, 7042, 9557, 17605, 19114, 35210, 47785, 66899, 95570, 133798, 334495, 668990]

約数ペア:

[(1, 668990), (2, 334495), (5, 133798), (7, 95570), (10, 66899), (14, 47785), (19, 35210), (35, 19114), (38, 17605), (70, 9557), (95, 7042), (133, 5030), (190, 3521), (266, 2515), (503, 1330), (665, 1006)]