280279804

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 594682368

約数和(自身を除く): 314402564

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 163, 196, 217, 283, 326, 434, 566, 652, 868, 1132, 1141, 1519, 1981, 2282, 3038, 3962, 4564, 5053, 6076, 7924, 7987, 8773, 10106, 13867, 15974, 17546, 20212, 27734, 31948, 35092, 35371, 46129, 55468, 61411, 70742, 92258, 122822, 141484, 184516, 245644, 247597, 322903, 429877, 495194, 645806, 859754, 990388, 1291612, 1429999, 1719508, 2260321, 2859998, 4520642, 5719996, 9041284, 10009993, 20019986, 40039972, 70069951, 140139902, 280279804]

約数ペア:

[(1, 280279804), (2, 140139902), (4, 70069951), (7, 40039972), (14, 20019986), (28, 10009993), (31, 9041284), (49, 5719996), (62, 4520642), (98, 2859998), (124, 2260321), (163, 1719508), (196, 1429999), (217, 1291612), (283, 990388), (326, 859754), (434, 645806), (566, 495194), (652, 429877), (868, 322903), (1132, 247597), (1141, 245644), (1519, 184516), (1981, 141484), (2282, 122822), (3038, 92258), (3962, 70742), (4564, 61411), (5053, 55468), (6076, 46129), (7924, 35371), (7987, 35092), (8773, 31948), (10106, 27734), (13867, 20212), (15974, 17546)]