129388870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 268240896

約数和(自身を除く): 138852026

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 127, 130, 170, 221, 254, 442, 461, 635, 922, 1105, 1270, 1651, 2159, 2210, 2305, 3302, 4318, 4610, 5993, 7837, 8255, 10795, 11986, 15674, 16510, 21590, 28067, 29965, 39185, 56134, 58547, 59930, 78370, 101881, 117094, 140335, 203762, 280670, 292735, 509405, 585470, 761111, 995299, 1018810, 1522222, 1990598, 3805555, 4976495, 7611110, 9952990, 12938887, 25877774, 64694435, 129388870]

約数ペア:

[(1, 129388870), (2, 64694435), (5, 25877774), (10, 12938887), (13, 9952990), (17, 7611110), (26, 4976495), (34, 3805555), (65, 1990598), (85, 1522222), (127, 1018810), (130, 995299), (170, 761111), (221, 585470), (254, 509405), (442, 292735), (461, 280670), (635, 203762), (922, 140335), (1105, 117094), (1270, 101881), (1651, 78370), (2159, 59930), (2210, 58547), (2305, 56134), (3302, 39185), (4318, 29965), (4610, 28067), (5993, 21590), (7837, 16510), (8255, 15674), (10795, 11986)]