19499940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12037}}^1$

素因数の和:12058

約数の個数: 60

約数和(自身を含む): 61177116

約数和(自身を除く): 41677176

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12037, 24074, 36111, 48148, 60185, 72222, 108333, 120370, 144444, 180555, 216666, 240740, 324999, 361110, 433332, 541665, 649998, 722220, 974997, 1083330, 1299996, 1624995, 1949994, 2166660, 3249990, 3899988, 4874985, 6499980, 9749970, 19499940]

約数ペア:

[(1, 19499940), (2, 9749970), (3, 6499980), (4, 4874985), (5, 3899988), (6, 3249990), (9, 2166660), (10, 1949994), (12, 1624995), (15, 1299996), (18, 1083330), (20, 974997), (27, 722220), (30, 649998), (36, 541665), (45, 433332), (54, 361110), (60, 324999), (81, 240740), (90, 216666), (108, 180555), (135, 144444), (162, 120370), (180, 108333), (270, 72222), (324, 60185), (405, 48148), (540, 36111), (810, 24074), (1620, 12037)]