31073240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70621}}^1$

素因数の和:70643

約数の個数: 32

約数和(自身を含む): 76271760

約数和(自身を除く): 45198520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 70621, 141242, 282484, 353105, 564968, 706210, 776831, 1412420, 1553662, 2824840, 3107324, 3884155, 6214648, 7768310, 15536620, 31073240]

約数ペア:

[(1, 31073240), (2, 15536620), (4, 7768310), (5, 6214648), (8, 3884155), (10, 3107324), (11, 2824840), (20, 1553662), (22, 1412420), (40, 776831), (44, 706210), (55, 564968), (88, 353105), (110, 282484), (220, 141242), (440, 70621)]