1279489820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:987

約数の個数: 96

約数和(自身を含む): 3132864000

約数和(自身を除く): 1853374180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 149, 166, 298, 332, 415, 581, 596, 739, 745, 830, 1043, 1162, 1478, 1490, 1660, 2086, 2324, 2905, 2956, 2980, 3695, 4172, 5173, 5215, 5810, 7390, 10346, 10430, 11620, 12367, 14780, 20692, 20860, 24734, 25865, 49468, 51730, 61337, 61835, 86569, 103460, 110111, 122674, 123670, 173138, 220222, 245348, 247340, 306685, 346276, 429359, 432845, 440444, 550555, 613370, 770777, 858718, 865690, 1101110, 1226740, 1541554, 1717436, 1731380, 2146795, 2202220, 3083108, 3853885, 4293590, 7707770, 8587180, 9139213, 15415540, 18278426, 36556852, 45696065, 63974491, 91392130, 127948982, 182784260, 255897964, 319872455, 639744910, 1279489820]

約数ペア:

[(1, 1279489820), (2, 639744910), (4, 319872455), (5, 255897964), (7, 182784260), (10, 127948982), (14, 91392130), (20, 63974491), (28, 45696065), (35, 36556852), (70, 18278426), (83, 15415540), (140, 9139213), (149, 8587180), (166, 7707770), (298, 4293590), (332, 3853885), (415, 3083108), (581, 2202220), (596, 2146795), (739, 1731380), (745, 1717436), (830, 1541554), (1043, 1226740), (1162, 1101110), (1478, 865690), (1490, 858718), (1660, 770777), (2086, 613370), (2324, 550555), (2905, 440444), (2956, 432845), (2980, 429359), (3695, 346276), (4172, 306685), (5173, 247340), (5215, 245348), (5810, 220222), (7390, 173138), (10346, 123670), (10430, 122674), (11620, 110111), (12367, 103460), (14780, 86569), (20692, 61835), (20860, 61337), (24734, 51730), (25865, 49468)]