20314420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1133

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 31970540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1091, 1330, 1862, 2182, 2660, 3724, 4364, 4655, 5455, 7637, 9310, 10910, 15274, 18620, 20729, 21820, 30548, 38185, 41458, 53459, 76370, 82916, 103645, 106918, 145103, 152740, 207290, 213836, 267295, 290206, 414580, 534590, 580412, 725515, 1015721, 1069180, 1451030, 2031442, 2902060, 4062884, 5078605, 10157210, 20314420]

約数ペア:

[(1, 20314420), (2, 10157210), (4, 5078605), (5, 4062884), (7, 2902060), (10, 2031442), (14, 1451030), (19, 1069180), (20, 1015721), (28, 725515), (35, 580412), (38, 534590), (49, 414580), (70, 290206), (76, 267295), (95, 213836), (98, 207290), (133, 152740), (140, 145103), (190, 106918), (196, 103645), (245, 82916), (266, 76370), (380, 53459), (490, 41458), (532, 38185), (665, 30548), (931, 21820), (980, 20729), (1091, 18620), (1330, 15274), (1862, 10910), (2182, 9310), (2660, 7637), (3724, 5455), (4364, 4655)]