20626400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 56246400

約数和(自身を除く): 35620000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 25, 32, 38, 40, 46, 50, 59, 76, 80, 92, 95, 100, 115, 118, 152, 160, 184, 190, 200, 230, 236, 295, 304, 368, 380, 400, 437, 460, 472, 475, 575, 590, 608, 736, 760, 800, 874, 920, 944, 950, 1121, 1150, 1180, 1357, 1475, 1520, 1748, 1840, 1888, 1900, 2185, 2242, 2300, 2360, 2714, 2950, 3040, 3496, 3680, 3800, 4370, 4484, 4600, 4720, 5428, 5605, 5900, 6785, 6992, 7600, 8740, 8968, 9200, 9440, 10856, 10925, 11210, 11800, 13570, 13984, 15200, 17480, 17936, 18400, 21712, 21850, 22420, 23600, 25783, 27140, 28025, 33925, 34960, 35872, 43424, 43700, 44840, 47200, 51566, 54280, 56050, 67850, 69920, 87400, 89680, 103132, 108560, 112100, 128915, 135700, 174800, 179360, 206264, 217120, 224200, 257830, 271400, 349600, 412528, 448400, 515660, 542800, 644575, 825056, 896800, 1031320, 1085600, 1289150, 2062640, 2578300, 4125280, 5156600, 10313200, 20626400]

約数ペア:

[(1, 20626400), (2, 10313200), (4, 5156600), (5, 4125280), (8, 2578300), (10, 2062640), (16, 1289150), (19, 1085600), (20, 1031320), (23, 896800), (25, 825056), (32, 644575), (38, 542800), (40, 515660), (46, 448400), (50, 412528), (59, 349600), (76, 271400), (80, 257830), (92, 224200), (95, 217120), (100, 206264), (115, 179360), (118, 174800), (152, 135700), (160, 128915), (184, 112100), (190, 108560), (200, 103132), (230, 89680), (236, 87400), (295, 69920), (304, 67850), (368, 56050), (380, 54280), (400, 51566), (437, 47200), (460, 44840), (472, 43700), (475, 43424), (575, 35872), (590, 34960), (608, 33925), (736, 28025), (760, 27140), (800, 25783), (874, 23600), (920, 22420), (944, 21850), (950, 21712), (1121, 18400), (1150, 17936), (1180, 17480), (1357, 15200), (1475, 13984), (1520, 13570), (1748, 11800), (1840, 11210), (1888, 10925), (1900, 10856), (2185, 9440), (2242, 9200), (2300, 8968), (2360, 8740), (2714, 7600), (2950, 6992), (3040, 6785), (3496, 5900), (3680, 5605), (3800, 5428), (4370, 4720), (4484, 4600)]