661377808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{14653}}^1$

素因数の和:14712

約数の個数: 80

約数和(自身を含む): 1628118016

約数和(自身を除く): 966740208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 5642, 6448, 11284, 14653, 22568, 29306, 45136, 58612, 102571, 117224, 190489, 205142, 234448, 380978, 410284, 454243, 761956, 820568, 908486, 1333423, 1523912, 1641136, 1816972, 2666846, 3047824, 3179701, 3633944, 5333692, 5905159, 6359402, 7267888, 10667384, 11810318, 12718804, 21334768, 23620636, 25437608, 41336113, 47241272, 50875216, 82672226, 94482544, 165344452, 330688904, 661377808]

約数ペア:

[(1, 661377808), (2, 330688904), (4, 165344452), (7, 94482544), (8, 82672226), (13, 50875216), (14, 47241272), (16, 41336113), (26, 25437608), (28, 23620636), (31, 21334768), (52, 12718804), (56, 11810318), (62, 10667384), (91, 7267888), (104, 6359402), (112, 5905159), (124, 5333692), (182, 3633944), (208, 3179701), (217, 3047824), (248, 2666846), (364, 1816972), (403, 1641136), (434, 1523912), (496, 1333423), (728, 908486), (806, 820568), (868, 761956), (1456, 454243), (1612, 410284), (1736, 380978), (2821, 234448), (3224, 205142), (3472, 190489), (5642, 117224), (6448, 102571), (11284, 58612), (14653, 45136), (22568, 29306)]