201921888890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2713}}^1\times {\mathrm{437809}}^1$

素因数の和:440546

約数の個数: 32

約数和(自身を含む): 384982094160

約数和(自身を除く): 183060205270

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 2713, 5426, 13565, 27130, 46121, 92242, 230605, 437809, 461210, 875618, 2189045, 4378090, 7442753, 14885506, 37213765, 74427530, 1187775817, 2375551634, 5938879085, 11877758170, 20192188889, 40384377778, 100960944445, 201921888890]

約数ペア:

[(1, 201921888890), (2, 100960944445), (5, 40384377778), (10, 20192188889), (17, 11877758170), (34, 5938879085), (85, 2375551634), (170, 1187775817), (2713, 74427530), (5426, 37213765), (13565, 14885506), (27130, 7442753), (46121, 4378090), (92242, 2189045), (230605, 875618), (437809, 461210)]