1285755737980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1451}}^1\times {\mathrm{904201}}^1$

素因数の和:905675

約数の個数: 72

約数和(自身を含む): 3143085721776

約数和(自身を除く): 1857329983796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1451, 2902, 5804, 7255, 10157, 14510, 20314, 29020, 40628, 50785, 71099, 101570, 142198, 203140, 284396, 355495, 710990, 904201, 1421980, 1808402, 3616804, 4521005, 6329407, 9042010, 12658814, 18084020, 25317628, 31647035, 44305849, 63294070, 88611698, 126588140, 177223396, 221529245, 443058490, 886116980, 1311995651, 2623991302, 5247982604, 6559978255, 9183969557, 13119956510, 18367939114, 26239913020, 36735878228, 45919847785, 64287786899, 91839695570, 128575573798, 183679391140, 257151147596, 321438934495, 642877868990, 1285755737980]

約数ペア:

[(1, 1285755737980), (2, 642877868990), (4, 321438934495), (5, 257151147596), (7, 183679391140), (10, 128575573798), (14, 91839695570), (20, 64287786899), (28, 45919847785), (35, 36735878228), (49, 26239913020), (70, 18367939114), (98, 13119956510), (140, 9183969557), (196, 6559978255), (245, 5247982604), (490, 2623991302), (980, 1311995651), (1451, 886116980), (2902, 443058490), (5804, 221529245), (7255, 177223396), (10157, 126588140), (14510, 88611698), (20314, 63294070), (29020, 44305849), (40628, 31647035), (50785, 25317628), (71099, 18084020), (101570, 12658814), (142198, 9042010), (203140, 6329407), (284396, 4521005), (355495, 3616804), (710990, 1808402), (904201, 1421980)]