640616004

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{363161}}^1$

素因数の和:363185

約数の個数: 54

約数和(自身を含む): 1883721294

約数和(自身を除く): 1243105290

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 363161, 726322, 1089483, 1452644, 2178966, 2542127, 3268449, 4357932, 5084254, 6536898, 7626381, 10168508, 13073796, 15252762, 17794889, 22879143, 30505524, 35589778, 45758286, 53384667, 71179556, 91516572, 106769334, 160154001, 213538668, 320308002, 640616004]

約数ペア:

[(1, 640616004), (2, 320308002), (3, 213538668), (4, 160154001), (6, 106769334), (7, 91516572), (9, 71179556), (12, 53384667), (14, 45758286), (18, 35589778), (21, 30505524), (28, 22879143), (36, 17794889), (42, 15252762), (49, 13073796), (63, 10168508), (84, 7626381), (98, 6536898), (126, 5084254), (147, 4357932), (196, 3268449), (252, 2542127), (294, 2178966), (441, 1452644), (588, 1089483), (882, 726322), (1764, 363161)]