18787040

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6907}}^1$

素因数の和:6939

約数の個数: 48

約数和(自身を含む): 47002032

約数和(自身を除く): 28214992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 6907, 13814, 27628, 34535, 55256, 69070, 110512, 117419, 138140, 221024, 234838, 276280, 469676, 552560, 587095, 939352, 1105120, 1174190, 1878704, 2348380, 3757408, 4696760, 9393520, 18787040]

約数ペア:

[(1, 18787040), (2, 9393520), (4, 4696760), (5, 3757408), (8, 2348380), (10, 1878704), (16, 1174190), (17, 1105120), (20, 939352), (32, 587095), (34, 552560), (40, 469676), (68, 276280), (80, 234838), (85, 221024), (136, 138140), (160, 117419), (170, 110512), (272, 69070), (340, 55256), (544, 34535), (680, 27628), (1360, 13814), (2720, 6907)]