149138980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1459}}^1$

素因数の和:1756

約数の個数: 48

約数和(自身を含む): 331128000

約数和(自身を除く): 181989020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 380, 538, 1076, 1345, 1459, 2690, 2918, 5111, 5380, 5836, 7295, 10222, 14590, 20444, 25555, 27721, 29180, 51110, 55442, 102220, 110884, 138605, 277210, 392471, 554420, 784942, 1569884, 1962355, 3924710, 7456949, 7849420, 14913898, 29827796, 37284745, 74569490, 149138980]

約数ペア:

[(1, 149138980), (2, 74569490), (4, 37284745), (5, 29827796), (10, 14913898), (19, 7849420), (20, 7456949), (38, 3924710), (76, 1962355), (95, 1569884), (190, 784942), (269, 554420), (380, 392471), (538, 277210), (1076, 138605), (1345, 110884), (1459, 102220), (2690, 55442), (2918, 51110), (5111, 29180), (5380, 27721), (5836, 25555), (7295, 20444), (10222, 14590)]