19568720

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{739}}^1$

素因数の和:1083

約数の個数: 40

約数和(自身を含む): 45696480

約数和(自身を除く): 26127760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 739, 1324, 1478, 1655, 2648, 2956, 3310, 3695, 5296, 5912, 6620, 7390, 11824, 13240, 14780, 26480, 29560, 59120, 244609, 489218, 978436, 1223045, 1956872, 2446090, 3913744, 4892180, 9784360, 19568720]

約数ペア:

[(1, 19568720), (2, 9784360), (4, 4892180), (5, 3913744), (8, 2446090), (10, 1956872), (16, 1223045), (20, 978436), (40, 489218), (80, 244609), (331, 59120), (662, 29560), (739, 26480), (1324, 14780), (1478, 13240), (1655, 11824), (2648, 7390), (2956, 6620), (3310, 5912), (3695, 5296)]