215847940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20023}}^1$

素因数の和:20057

約数の個数: 72

約数和(自身を含む): 575249472

約数和(自身を除く): 359401532

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 20023, 40046, 80092, 100115, 140161, 200230, 220253, 280322, 400460, 440506, 560644, 700805, 881012, 981127, 1101265, 1401610, 1541771, 1962254, 2202530, 2803220, 3083542, 3924508, 4405060, 4905635, 6167084, 7708855, 9811270, 10792397, 15417710, 19622540, 21584794, 30835420, 43169588, 53961985, 107923970, 215847940]

約数ペア:

[(1, 215847940), (2, 107923970), (4, 53961985), (5, 43169588), (7, 30835420), (10, 21584794), (11, 19622540), (14, 15417710), (20, 10792397), (22, 9811270), (28, 7708855), (35, 6167084), (44, 4905635), (49, 4405060), (55, 3924508), (70, 3083542), (77, 2803220), (98, 2202530), (110, 1962254), (140, 1541771), (154, 1401610), (196, 1101265), (220, 981127), (245, 881012), (308, 700805), (385, 560644), (490, 440506), (539, 400460), (770, 280322), (980, 220253), (1078, 200230), (1540, 140161), (2156, 100115), (2695, 80092), (5390, 40046), (10780, 20023)]