209120890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{883}}^1\times {\mathrm{2153}}^1$

素因数の和:3054

約数の個数: 32

約数和(自身を含む): 411293376

約数和(自身を除く): 202172486

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 883, 1766, 2153, 4306, 4415, 8830, 9713, 10765, 19426, 21530, 23683, 47366, 48565, 97130, 118415, 236830, 1901099, 3802198, 9505495, 19010990, 20912089, 41824178, 104560445, 209120890]

約数ペア:

[(1, 209120890), (2, 104560445), (5, 41824178), (10, 20912089), (11, 19010990), (22, 9505495), (55, 3802198), (110, 1901099), (883, 236830), (1766, 118415), (2153, 97130), (4306, 48565), (4415, 47366), (8830, 23683), (9713, 21530), (10765, 19426)]