20037660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{641}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 56300832

約数和(自身を除く): 36263172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 521, 641, 1042, 1282, 1563, 1923, 2084, 2564, 2605, 3126, 3205, 3846, 5210, 6252, 6410, 7692, 7815, 9615, 10420, 12820, 15630, 19230, 31260, 38460, 333961, 667922, 1001883, 1335844, 1669805, 2003766, 3339610, 4007532, 5009415, 6679220, 10018830, 20037660]

約数ペア:

[(1, 20037660), (2, 10018830), (3, 6679220), (4, 5009415), (5, 4007532), (6, 3339610), (10, 2003766), (12, 1669805), (15, 1335844), (20, 1001883), (30, 667922), (60, 333961), (521, 38460), (641, 31260), (1042, 19230), (1282, 15630), (1563, 12820), (1923, 10420), (2084, 9615), (2564, 7815), (2605, 7692), (3126, 6410), (3205, 6252), (3846, 5210)]