20238040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 49536000

約数和(自身を除く): 29297960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 859, 1178, 1240, 1718, 2356, 2945, 3436, 4295, 4712, 5890, 6872, 8590, 11780, 16321, 17180, 23560, 26629, 32642, 34360, 53258, 65284, 81605, 106516, 130568, 133145, 163210, 213032, 266290, 326420, 505951, 532580, 652840, 1011902, 1065160, 2023804, 2529755, 4047608, 5059510, 10119020, 20238040]

約数ペア:

[(1, 20238040), (2, 10119020), (4, 5059510), (5, 4047608), (8, 2529755), (10, 2023804), (19, 1065160), (20, 1011902), (31, 652840), (38, 532580), (40, 505951), (62, 326420), (76, 266290), (95, 213032), (124, 163210), (152, 133145), (155, 130568), (190, 106516), (248, 81605), (310, 65284), (380, 53258), (589, 34360), (620, 32642), (760, 26629), (859, 23560), (1178, 17180), (1240, 16321), (1718, 11780), (2356, 8590), (2945, 6872), (3436, 5890), (4295, 4712)]