251018090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1583

約数の個数: 64

約数和(自身を含む): 511163136

約数和(自身を除く): 260145046

約数列:

[1, 2, 5, 10, 17, 23, 34, 43, 46, 85, 86, 115, 170, 215, 230, 391, 430, 731, 782, 989, 1462, 1493, 1955, 1978, 2986, 3655, 3910, 4945, 7310, 7465, 9890, 14930, 16813, 25381, 33626, 34339, 50762, 64199, 68678, 84065, 126905, 128398, 168130, 171695, 253810, 320995, 343390, 583763, 641990, 1091383, 1167526, 1476577, 2182766, 2918815, 2953154, 5456915, 5837630, 7382885, 10913830, 14765770, 25101809, 50203618, 125509045, 251018090]

約数ペア:

[(1, 251018090), (2, 125509045), (5, 50203618), (10, 25101809), (17, 14765770), (23, 10913830), (34, 7382885), (43, 5837630), (46, 5456915), (85, 2953154), (86, 2918815), (115, 2182766), (170, 1476577), (215, 1167526), (230, 1091383), (391, 641990), (430, 583763), (731, 343390), (782, 320995), (989, 253810), (1462, 171695), (1493, 168130), (1955, 128398), (1978, 126905), (2986, 84065), (3655, 68678), (3910, 64199), (4945, 50762), (7310, 34339), (7465, 33626), (9890, 25381), (14930, 16813)]