205366940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2383}}^1$

素因数の和:2562

約数の個数: 48

約数和(自身を含む): 448573440

約数和(自身を除く): 243206500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2383, 2780, 4309, 4766, 8618, 9532, 11915, 17236, 21545, 23830, 43090, 47660, 73873, 86180, 147746, 295492, 331237, 369365, 662474, 738730, 1324948, 1477460, 1656185, 3312370, 6624740, 10268347, 20536694, 41073388, 51341735, 102683470, 205366940]

約数ペア:

[(1, 205366940), (2, 102683470), (4, 51341735), (5, 41073388), (10, 20536694), (20, 10268347), (31, 6624740), (62, 3312370), (124, 1656185), (139, 1477460), (155, 1324948), (278, 738730), (310, 662474), (556, 369365), (620, 331237), (695, 295492), (1390, 147746), (2383, 86180), (2780, 73873), (4309, 47660), (4766, 43090), (8618, 23830), (9532, 21545), (11915, 17236)]