31298820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74521}}^1$

素因数の和:74540

約数の個数: 48

約数和(自身を含む): 100157568

約数和(自身を除く): 68858748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 74521, 149042, 223563, 298084, 372605, 447126, 521647, 745210, 894252, 1043294, 1117815, 1490420, 1564941, 2086588, 2235630, 2608235, 3129882, 4471260, 5216470, 6259764, 7824705, 10432940, 15649410, 31298820]

約数ペア:

[(1, 31298820), (2, 15649410), (3, 10432940), (4, 7824705), (5, 6259764), (6, 5216470), (7, 4471260), (10, 3129882), (12, 2608235), (14, 2235630), (15, 2086588), (20, 1564941), (21, 1490420), (28, 1117815), (30, 1043294), (35, 894252), (42, 745210), (60, 521647), (70, 447126), (84, 372605), (105, 298084), (140, 223563), (210, 149042), (420, 74521)]