209959010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{13877}}^1$

素因数の和:13990

約数の個数: 32

約数和(自身を含む): 404682480

約数和(自身を除く): 194723470

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 7565, 13877, 15130, 27754, 69385, 138770, 235909, 471818, 1179545, 1235053, 2359090, 2470106, 6175265, 12350530, 20995901, 41991802, 104979505, 209959010]

約数ペア:

[(1, 209959010), (2, 104979505), (5, 41991802), (10, 20995901), (17, 12350530), (34, 6175265), (85, 2470106), (89, 2359090), (170, 1235053), (178, 1179545), (445, 471818), (890, 235909), (1513, 138770), (3026, 69385), (7565, 27754), (13877, 15130)]