669032720

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{63839}}^1$

素因数の和:63983

約数の個数: 40

約数和(自身を含む): 1567399680

約数和(自身を除く): 898366960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 63839, 127678, 255356, 319195, 510712, 638390, 1021424, 1276780, 2553560, 5107120, 8362909, 16725818, 33451636, 41814545, 66903272, 83629090, 133806544, 167258180, 334516360, 669032720]

約数ペア:

[(1, 669032720), (2, 334516360), (4, 167258180), (5, 133806544), (8, 83629090), (10, 66903272), (16, 41814545), (20, 33451636), (40, 16725818), (80, 8362909), (131, 5107120), (262, 2553560), (524, 1276780), (655, 1021424), (1048, 638390), (1310, 510712), (2096, 319195), (2620, 255356), (5240, 127678), (10480, 63839)]