51680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:51

約数の個数: 48

約数和(自身を含む): 136080

約数和(自身を除く): 84400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 160, 170, 190, 272, 304, 323, 340, 380, 544, 608, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 2720, 3040, 3230, 5168, 6460, 10336, 12920, 25840, 51680]

約数ペア:

[(1, 51680), (2, 25840), (4, 12920), (5, 10336), (8, 6460), (10, 5168), (16, 3230), (17, 3040), (19, 2720), (20, 2584), (32, 1615), (34, 1520), (38, 1360), (40, 1292), (68, 760), (76, 680), (80, 646), (85, 608), (95, 544), (136, 380), (152, 340), (160, 323), (170, 304), (190, 272)]