642594040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47111}}^1$

素因数の和:47164

約数の個数: 64

約数和(自身を含む): 1628190720

約数和(自身を除く): 985596680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 47111, 94222, 188444, 235555, 376888, 471110, 518221, 942220, 1036442, 1460441, 1884440, 2072884, 2591105, 2920882, 4145768, 5182210, 5841764, 7302205, 10364420, 11683528, 14604410, 16064851, 20728840, 29208820, 32129702, 58417640, 64259404, 80324255, 128518808, 160648510, 321297020, 642594040]

約数ペア:

[(1, 642594040), (2, 321297020), (4, 160648510), (5, 128518808), (8, 80324255), (10, 64259404), (11, 58417640), (20, 32129702), (22, 29208820), (31, 20728840), (40, 16064851), (44, 14604410), (55, 11683528), (62, 10364420), (88, 7302205), (110, 5841764), (124, 5182210), (155, 4145768), (220, 2920882), (248, 2591105), (310, 2072884), (341, 1884440), (440, 1460441), (620, 1036442), (682, 942220), (1240, 518221), (1364, 471110), (1705, 376888), (2728, 235555), (3410, 188444), (6820, 94222), (13640, 47111)]