201686775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 346644480

約数和(自身を除く): 144957705

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 223, 389, 465, 669, 775, 1115, 1167, 1945, 2325, 3345, 5575, 5835, 6913, 9725, 12059, 16725, 20739, 29175, 34565, 36177, 60295, 86747, 103695, 172825, 180885, 260241, 301475, 433735, 518475, 904425, 1301205, 2168675, 2689157, 6506025, 8067471, 13445785, 40337355, 67228925, 201686775]

約数ペア:

[(1, 201686775), (3, 67228925), (5, 40337355), (15, 13445785), (25, 8067471), (31, 6506025), (75, 2689157), (93, 2168675), (155, 1301205), (223, 904425), (389, 518475), (465, 433735), (669, 301475), (775, 260241), (1115, 180885), (1167, 172825), (1945, 103695), (2325, 86747), (3345, 60295), (5575, 36177), (5835, 34565), (6913, 29175), (9725, 20739), (12059, 16725)]