205233890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1\times {\mathrm{661}}^1$

素因数の和:1238

約数の個数: 32

約数和(自身を含む): 376783920

約数和(自身を除く): 171550030

約数列:

[1, 2, 5, 10, 61, 122, 305, 509, 610, 661, 1018, 1322, 2545, 3305, 5090, 6610, 31049, 40321, 62098, 80642, 155245, 201605, 310490, 336449, 403210, 672898, 1682245, 3364490, 20523389, 41046778, 102616945, 205233890]

約数ペア:

[(1, 205233890), (2, 102616945), (5, 41046778), (10, 20523389), (61, 3364490), (122, 1682245), (305, 672898), (509, 403210), (610, 336449), (661, 310490), (1018, 201605), (1322, 155245), (2545, 80642), (3305, 62098), (5090, 40321), (6610, 31049)]