31006220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1091}}^1$

素因数の和:1143

約数の個数: 72

約数和(自身を含む): 78427440

約数和(自身を除く): 47421220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1091, 1421, 2030, 2182, 2842, 4060, 4364, 5455, 5684, 7105, 7637, 10910, 14210, 15274, 21820, 28420, 30548, 31639, 38185, 53459, 63278, 76370, 106918, 126556, 152740, 158195, 213836, 221473, 267295, 316390, 442946, 534590, 632780, 885892, 1069180, 1107365, 1550311, 2214730, 3100622, 4429460, 6201244, 7751555, 15503110, 31006220]

約数ペア:

[(1, 31006220), (2, 15503110), (4, 7751555), (5, 6201244), (7, 4429460), (10, 3100622), (14, 2214730), (20, 1550311), (28, 1107365), (29, 1069180), (35, 885892), (49, 632780), (58, 534590), (70, 442946), (98, 316390), (116, 267295), (140, 221473), (145, 213836), (196, 158195), (203, 152740), (245, 126556), (290, 106918), (406, 76370), (490, 63278), (580, 53459), (812, 38185), (980, 31639), (1015, 30548), (1091, 28420), (1421, 21820), (2030, 15274), (2182, 14210), (2842, 10910), (4060, 7637), (4364, 7105), (5455, 5684)]