91057540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20981}}^1$

素因数の和:21028

約数の個数: 48

約数和(自身を含む): 225598464

約数和(自身を除く): 134540924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20981, 41962, 83924, 104905, 146867, 209810, 293734, 419620, 587468, 650411, 734335, 1300822, 1468670, 2601644, 2937340, 3252055, 4552877, 6504110, 9105754, 13008220, 18211508, 22764385, 45528770, 91057540]

約数ペア:

[(1, 91057540), (2, 45528770), (4, 22764385), (5, 18211508), (7, 13008220), (10, 9105754), (14, 6504110), (20, 4552877), (28, 3252055), (31, 2937340), (35, 2601644), (62, 1468670), (70, 1300822), (124, 734335), (140, 650411), (155, 587468), (217, 419620), (310, 293734), (434, 209810), (620, 146867), (868, 104905), (1085, 83924), (2170, 41962), (4340, 20981)]