65291475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 117180000

約数和(自身を除く): 51888525

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 205, 255, 425, 615, 697, 1025, 1249, 1275, 2091, 3075, 3485, 3747, 6245, 10455, 17425, 18735, 21233, 31225, 51209, 52275, 63699, 93675, 106165, 153627, 256045, 318495, 530825, 768135, 870553, 1280225, 1592475, 2611659, 3840675, 4352765, 13058295, 21763825, 65291475]

約数ペア:

[(1, 65291475), (3, 21763825), (5, 13058295), (15, 4352765), (17, 3840675), (25, 2611659), (41, 1592475), (51, 1280225), (75, 870553), (85, 768135), (123, 530825), (205, 318495), (255, 256045), (425, 153627), (615, 106165), (697, 93675), (1025, 63699), (1249, 52275), (1275, 51209), (2091, 31225), (3075, 21233), (3485, 18735), (3747, 17425), (6245, 10455)]