664625025

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 1218672000

約数和(自身を除く): 554046975

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 139, 225, 237, 269, 395, 417, 695, 711, 807, 1185, 1251, 1345, 1975, 2085, 2421, 3475, 3555, 4035, 5925, 6255, 6725, 10425, 10981, 12105, 17775, 20175, 21251, 31275, 32943, 37391, 54905, 60525, 63753, 98829, 106255, 112173, 164715, 186955, 191259, 274525, 318765, 336519, 494145, 531275, 560865, 823575, 934775, 956295, 1593825, 1682595, 2470725, 2804325, 2953889, 4781475, 8412975, 8861667, 14769445, 26585001, 44308335, 73847225, 132925005, 221541675, 664625025]

約数ペア:

[(1, 664625025), (3, 221541675), (5, 132925005), (9, 73847225), (15, 44308335), (25, 26585001), (45, 14769445), (75, 8861667), (79, 8412975), (139, 4781475), (225, 2953889), (237, 2804325), (269, 2470725), (395, 1682595), (417, 1593825), (695, 956295), (711, 934775), (807, 823575), (1185, 560865), (1251, 531275), (1345, 494145), (1975, 336519), (2085, 318765), (2421, 274525), (3475, 191259), (3555, 186955), (4035, 164715), (5925, 112173), (6255, 106255), (6725, 98829), (10425, 63753), (10981, 60525), (12105, 54905), (17775, 37391), (20175, 32943), (21251, 31275)]