201907720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1721}}^1$

素因数の和:2158

約数の個数: 64

約数和(自身を含む): 520732800

約数和(自身を除く): 318825080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 419, 838, 1676, 1721, 2095, 2933, 3352, 3442, 4190, 5866, 6884, 8380, 8605, 11732, 12047, 13768, 14665, 16760, 17210, 23464, 24094, 29330, 34420, 48188, 58660, 60235, 68840, 96376, 117320, 120470, 240940, 481880, 721099, 1442198, 2884396, 3605495, 5047693, 5768792, 7210990, 10095386, 14421980, 20190772, 25238465, 28843960, 40381544, 50476930, 100953860, 201907720]

約数ペア:

[(1, 201907720), (2, 100953860), (4, 50476930), (5, 40381544), (7, 28843960), (8, 25238465), (10, 20190772), (14, 14421980), (20, 10095386), (28, 7210990), (35, 5768792), (40, 5047693), (56, 3605495), (70, 2884396), (140, 1442198), (280, 721099), (419, 481880), (838, 240940), (1676, 120470), (1721, 117320), (2095, 96376), (2933, 68840), (3352, 60235), (3442, 58660), (4190, 48188), (5866, 34420), (6884, 29330), (8380, 24094), (8605, 23464), (11732, 17210), (12047, 16760), (13768, 14665)]