20198131220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1\times {\mathrm{35449}}^1$

素因数の和:36408

約数の個数: 48

約数和(自身を含む): 43833216000

約数和(自身を除く): 23635084780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 919, 1838, 3676, 4595, 9190, 18380, 28489, 35449, 56978, 70898, 113956, 141796, 142445, 177245, 284890, 354490, 569780, 708980, 1098919, 2197838, 4395676, 5494595, 10989190, 21978380, 32577631, 65155262, 130310524, 162888155, 325776310, 651552620, 1009906561, 2019813122, 4039626244, 5049532805, 10099065610, 20198131220]

約数ペア:

[(1, 20198131220), (2, 10099065610), (4, 5049532805), (5, 4039626244), (10, 2019813122), (20, 1009906561), (31, 651552620), (62, 325776310), (124, 162888155), (155, 130310524), (310, 65155262), (620, 32577631), (919, 21978380), (1838, 10989190), (3676, 5494595), (4595, 4395676), (9190, 2197838), (18380, 1098919), (28489, 708980), (35449, 569780), (56978, 354490), (70898, 284890), (113956, 177245), (141796, 142445)]