521625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:138

約数の個数: 32

約数和(自身を含む): 943488

約数和(自身を除く): 421863

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 107, 125, 195, 321, 325, 375, 535, 975, 1391, 1605, 1625, 2675, 4173, 4875, 6955, 8025, 13375, 20865, 34775, 40125, 104325, 173875, 521625]

約数ペア:

[(1, 521625), (3, 173875), (5, 104325), (13, 40125), (15, 34775), (25, 20865), (39, 13375), (65, 8025), (75, 6955), (107, 4875), (125, 4173), (195, 2675), (321, 1625), (325, 1605), (375, 1391), (535, 975)]