1988981235

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61991}}^1$

素因数の和:62056

約数の個数: 48

約数和(自身を含む): 3713568768

約数和(自身を除く): 1724587533

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 713, 1035, 1395, 2139, 3565, 6417, 10695, 32085, 61991, 185973, 309955, 557919, 929865, 1425793, 1921721, 2789595, 4277379, 5765163, 7128965, 9608605, 12832137, 17295489, 21386895, 28825815, 44199583, 64160685, 86477445, 132598749, 220997915, 397796247, 662993745, 1988981235]

約数ペア:

[(1, 1988981235), (3, 662993745), (5, 397796247), (9, 220997915), (15, 132598749), (23, 86477445), (31, 64160685), (45, 44199583), (69, 28825815), (93, 21386895), (115, 17295489), (155, 12832137), (207, 9608605), (279, 7128965), (345, 5765163), (465, 4277379), (713, 2789595), (1035, 1921721), (1395, 1425793), (2139, 929865), (3565, 557919), (6417, 309955), (10695, 185973), (32085, 61991)]