25302940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{317}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 57591072

約数和(自身を除く): 32288132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 317, 614, 634, 1228, 1268, 1535, 1585, 3070, 3170, 3991, 4121, 6140, 6340, 7982, 8242, 15964, 16484, 19955, 20605, 39910, 41210, 79820, 82420, 97319, 194638, 389276, 486595, 973190, 1265147, 1946380, 2530294, 5060588, 6325735, 12651470, 25302940]

約数ペア:

[(1, 25302940), (2, 12651470), (4, 6325735), (5, 5060588), (10, 2530294), (13, 1946380), (20, 1265147), (26, 973190), (52, 486595), (65, 389276), (130, 194638), (260, 97319), (307, 82420), (317, 79820), (614, 41210), (634, 39910), (1228, 20605), (1268, 19955), (1535, 16484), (1585, 15964), (3070, 8242), (3170, 7982), (3991, 6340), (4121, 6140)]