308476540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1993}}^1$

素因数の和:2182

約数の個数: 48

約数和(自身を含む): 663284160

約数和(自身を除く): 354807620

約数列:

[1, 2, 4, 5, 10, 20, 71, 109, 142, 218, 284, 355, 436, 545, 710, 1090, 1420, 1993, 2180, 3986, 7739, 7972, 9965, 15478, 19930, 30956, 38695, 39860, 77390, 141503, 154780, 217237, 283006, 434474, 566012, 707515, 868948, 1086185, 1415030, 2172370, 2830060, 4344740, 15423827, 30847654, 61695308, 77119135, 154238270, 308476540]

約数ペア:

[(1, 308476540), (2, 154238270), (4, 77119135), (5, 61695308), (10, 30847654), (20, 15423827), (71, 4344740), (109, 2830060), (142, 2172370), (218, 1415030), (284, 1086185), (355, 868948), (436, 707515), (545, 566012), (710, 434474), (1090, 283006), (1420, 217237), (1993, 154780), (2180, 141503), (3986, 77390), (7739, 39860), (7972, 38695), (9965, 30956), (15478, 19930)]