1375780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 3419136

約数和(自身を除く): 2043356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 317, 434, 620, 634, 868, 1085, 1268, 1585, 2170, 2219, 3170, 4340, 4438, 6340, 8876, 9827, 11095, 19654, 22190, 39308, 44380, 49135, 68789, 98270, 137578, 196540, 275156, 343945, 687890, 1375780]

約数ペア:

[(1, 1375780), (2, 687890), (4, 343945), (5, 275156), (7, 196540), (10, 137578), (14, 98270), (20, 68789), (28, 49135), (31, 44380), (35, 39308), (62, 22190), (70, 19654), (124, 11095), (140, 9827), (155, 8876), (217, 6340), (310, 4438), (317, 4340), (434, 3170), (620, 2219), (634, 2170), (868, 1585), (1085, 1268)]