128322800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 331291296

約数和(自身を除く): 202968496

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 113, 136, 167, 170, 200, 226, 272, 334, 340, 400, 425, 452, 565, 668, 680, 835, 850, 904, 1130, 1336, 1360, 1670, 1700, 1808, 1921, 2260, 2672, 2825, 2839, 3340, 3400, 3842, 4175, 4520, 5650, 5678, 6680, 6800, 7684, 8350, 9040, 9605, 11300, 11356, 13360, 14195, 15368, 16700, 18871, 19210, 22600, 22712, 28390, 30736, 33400, 37742, 38420, 45200, 45424, 48025, 56780, 66800, 70975, 75484, 76840, 94355, 96050, 113560, 141950, 150968, 153680, 188710, 192100, 227120, 283900, 301936, 320807, 377420, 384200, 471775, 567800, 641614, 754840, 768400, 943550, 1135600, 1283228, 1509680, 1604035, 1887100, 2566456, 3208070, 3774200, 5132912, 6416140, 7548400, 8020175, 12832280, 16040350, 25664560, 32080700, 64161400, 128322800]

約数ペア:

[(1, 128322800), (2, 64161400), (4, 32080700), (5, 25664560), (8, 16040350), (10, 12832280), (16, 8020175), (17, 7548400), (20, 6416140), (25, 5132912), (34, 3774200), (40, 3208070), (50, 2566456), (68, 1887100), (80, 1604035), (85, 1509680), (100, 1283228), (113, 1135600), (136, 943550), (167, 768400), (170, 754840), (200, 641614), (226, 567800), (272, 471775), (334, 384200), (340, 377420), (400, 320807), (425, 301936), (452, 283900), (565, 227120), (668, 192100), (680, 188710), (835, 153680), (850, 150968), (904, 141950), (1130, 113560), (1336, 96050), (1360, 94355), (1670, 76840), (1700, 75484), (1808, 70975), (1921, 66800), (2260, 56780), (2672, 48025), (2825, 45424), (2839, 45200), (3340, 38420), (3400, 37742), (3842, 33400), (4175, 30736), (4520, 28390), (5650, 22712), (5678, 22600), (6680, 19210), (6800, 18871), (7684, 16700), (8350, 15368), (9040, 14195), (9605, 13360), (11300, 11356)]