64864240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16547}}^1$

素因数の和:16574

約数の個数: 60

約数和(自身を含む): 175441896

約数和(自身を除く): 110577656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 16547, 33094, 66188, 82735, 115829, 132376, 165470, 231658, 264752, 330940, 463316, 579145, 661880, 810803, 926632, 1158290, 1323760, 1621606, 1853264, 2316580, 3243212, 4054015, 4633160, 6486424, 8108030, 9266320, 12972848, 16216060, 32432120, 64864240]

約数ペア:

[(1, 64864240), (2, 32432120), (4, 16216060), (5, 12972848), (7, 9266320), (8, 8108030), (10, 6486424), (14, 4633160), (16, 4054015), (20, 3243212), (28, 2316580), (35, 1853264), (40, 1621606), (49, 1323760), (56, 1158290), (70, 926632), (80, 810803), (98, 661880), (112, 579145), (140, 463316), (196, 330940), (245, 264752), (280, 231658), (392, 165470), (490, 132376), (560, 115829), (784, 82735), (980, 66188), (1960, 33094), (3920, 16547)]