645480820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1\times {\mathrm{3067}}^1$

素因数の和:3712

約数の個数: 48

約数和(自身を含む): 1438032960

約数和(自身を除く): 792552140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 619, 1238, 2476, 3067, 3095, 6134, 6190, 10523, 12268, 12380, 15335, 21046, 30670, 42092, 52139, 52615, 61340, 104278, 105230, 208556, 210460, 260695, 521390, 1042780, 1898473, 3796946, 7593892, 9492365, 18984730, 32274041, 37969460, 64548082, 129096164, 161370205, 322740410, 645480820]

約数ペア:

[(1, 645480820), (2, 322740410), (4, 161370205), (5, 129096164), (10, 64548082), (17, 37969460), (20, 32274041), (34, 18984730), (68, 9492365), (85, 7593892), (170, 3796946), (340, 1898473), (619, 1042780), (1238, 521390), (2476, 260695), (3067, 210460), (3095, 208556), (6134, 105230), (6190, 104278), (10523, 61340), (12268, 52615), (12380, 52139), (15335, 42092), (21046, 30670)]