27808940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 62596800

約数和(自身を除く): 34787860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 919, 1513, 1780, 1838, 3026, 3676, 4595, 6052, 7565, 9190, 15130, 15623, 18380, 30260, 31246, 62492, 78115, 81791, 156230, 163582, 312460, 327164, 408955, 817910, 1390447, 1635820, 2780894, 5561788, 6952235, 13904470, 27808940]

約数ペア:

[(1, 27808940), (2, 13904470), (4, 6952235), (5, 5561788), (10, 2780894), (17, 1635820), (20, 1390447), (34, 817910), (68, 408955), (85, 327164), (89, 312460), (170, 163582), (178, 156230), (340, 81791), (356, 78115), (445, 62492), (890, 31246), (919, 30260), (1513, 18380), (1780, 15623), (1838, 15130), (3026, 9190), (3676, 7565), (4595, 6052)]