71784880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{52783}}^1$

素因数の和:52813

約数の個数: 40

約数和(自身を含む): 176720832

約数和(自身を除く): 104935952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 52783, 105566, 211132, 263915, 422264, 527830, 844528, 897311, 1055660, 1794622, 2111320, 3589244, 4222640, 4486555, 7178488, 8973110, 14356976, 17946220, 35892440, 71784880]

約数ペア:

[(1, 71784880), (2, 35892440), (4, 17946220), (5, 14356976), (8, 8973110), (10, 7178488), (16, 4486555), (17, 4222640), (20, 3589244), (34, 2111320), (40, 1794622), (68, 1055660), (80, 897311), (85, 844528), (136, 527830), (170, 422264), (272, 263915), (340, 211132), (680, 105566), (1360, 52783)]