638577996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{5147}}^1$

素因数の和:5379

約数の個数: 72

約数和(自身を含む): 1741836096

約数和(自身を除く): 1103258100

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 211, 294, 422, 588, 633, 844, 1266, 1477, 2532, 2954, 4431, 5147, 5908, 8862, 10294, 10339, 15441, 17724, 20588, 20678, 30882, 31017, 36029, 41356, 61764, 62034, 72058, 108087, 124068, 144116, 216174, 252203, 432348, 504406, 756609, 1008812, 1086017, 1513218, 2172034, 3026436, 3258051, 4344068, 6516102, 7602119, 13032204, 15204238, 22806357, 30408476, 45612714, 53214833, 91225428, 106429666, 159644499, 212859332, 319288998, 638577996]

約数ペア:

[(1, 638577996), (2, 319288998), (3, 212859332), (4, 159644499), (6, 106429666), (7, 91225428), (12, 53214833), (14, 45612714), (21, 30408476), (28, 22806357), (42, 15204238), (49, 13032204), (84, 7602119), (98, 6516102), (147, 4344068), (196, 3258051), (211, 3026436), (294, 2172034), (422, 1513218), (588, 1086017), (633, 1008812), (844, 756609), (1266, 504406), (1477, 432348), (2532, 252203), (2954, 216174), (4431, 144116), (5147, 124068), (5908, 108087), (8862, 72058), (10294, 62034), (10339, 61764), (15441, 41356), (17724, 36029), (20588, 31017), (20678, 30882)]