538919980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1\times {\mathrm{919}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 1147608000

約数和(自身を除く): 608688020

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 269, 436, 538, 545, 919, 1076, 1090, 1345, 1838, 2180, 2690, 3676, 4595, 5380, 9190, 18380, 29321, 58642, 100171, 117284, 146605, 200342, 247211, 293210, 400684, 494422, 500855, 586420, 988844, 1001710, 1236055, 2003420, 2472110, 4944220, 26945999, 53891998, 107783996, 134729995, 269459990, 538919980]

約数ペア:

[(1, 538919980), (2, 269459990), (4, 134729995), (5, 107783996), (10, 53891998), (20, 26945999), (109, 4944220), (218, 2472110), (269, 2003420), (436, 1236055), (538, 1001710), (545, 988844), (919, 586420), (1076, 500855), (1090, 494422), (1345, 400684), (1838, 293210), (2180, 247211), (2690, 200342), (3676, 146605), (4595, 117284), (5380, 100171), (9190, 58642), (18380, 29321)]