31545080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 81915840

約数和(自身を除く): 50370760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 997, 1130, 1582, 1994, 2260, 3164, 3955, 3988, 4520, 4985, 6328, 6979, 7910, 7976, 9970, 13958, 15820, 19940, 27916, 31640, 34895, 39880, 55832, 69790, 112661, 139580, 225322, 279160, 450644, 563305, 788627, 901288, 1126610, 1577254, 2253220, 3154508, 3943135, 4506440, 6309016, 7886270, 15772540, 31545080]

約数ペア:

[(1, 31545080), (2, 15772540), (4, 7886270), (5, 6309016), (7, 4506440), (8, 3943135), (10, 3154508), (14, 2253220), (20, 1577254), (28, 1126610), (35, 901288), (40, 788627), (56, 563305), (70, 450644), (113, 279160), (140, 225322), (226, 139580), (280, 112661), (452, 69790), (565, 55832), (791, 39880), (904, 34895), (997, 31640), (1130, 27916), (1582, 19940), (1994, 15820), (2260, 13958), (3164, 9970), (3955, 7976), (3988, 7910), (4520, 6979), (4985, 6328)]