639822816

素因数分解:

$2^5\times 3^2\times {\mathrm{103}}^1\times {\mathrm{21569}}^1$

素因数の和:21688

約数の個数: 72

約数和(自身を含む): 1837246320

約数和(自身を除く): 1197423504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 103, 144, 206, 288, 309, 412, 618, 824, 927, 1236, 1648, 1854, 2472, 3296, 3708, 4944, 7416, 9888, 14832, 21569, 29664, 43138, 64707, 86276, 129414, 172552, 194121, 258828, 345104, 388242, 517656, 690208, 776484, 1035312, 1552968, 2070624, 2221607, 3105936, 4443214, 6211872, 6664821, 8886428, 13329642, 17772856, 19994463, 26659284, 35545712, 39988926, 53318568, 71091424, 79977852, 106637136, 159955704, 213274272, 319911408, 639822816]

約数ペア:

[(1, 639822816), (2, 319911408), (3, 213274272), (4, 159955704), (6, 106637136), (8, 79977852), (9, 71091424), (12, 53318568), (16, 39988926), (18, 35545712), (24, 26659284), (32, 19994463), (36, 17772856), (48, 13329642), (72, 8886428), (96, 6664821), (103, 6211872), (144, 4443214), (206, 3105936), (288, 2221607), (309, 2070624), (412, 1552968), (618, 1035312), (824, 776484), (927, 690208), (1236, 517656), (1648, 388242), (1854, 345104), (2472, 258828), (3296, 194121), (3708, 172552), (4944, 129414), (7416, 86276), (9888, 64707), (14832, 43138), (21569, 29664)]