128212810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 281304576

約数和(自身を除く): 153091766

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 34, 46, 55, 85, 110, 115, 121, 170, 187, 230, 242, 253, 271, 374, 391, 506, 542, 605, 782, 935, 1210, 1265, 1355, 1870, 1955, 2057, 2530, 2710, 2783, 2981, 3910, 4114, 4301, 4607, 5566, 5962, 6233, 8602, 9214, 10285, 12466, 13915, 14905, 20570, 21505, 23035, 27830, 29810, 31165, 32791, 43010, 46070, 47311, 50677, 62330, 65582, 68563, 94622, 101354, 105961, 137126, 163955, 211922, 236555, 253385, 327910, 342815, 473110, 506770, 529805, 557447, 685630, 754193, 1059610, 1114894, 1165571, 1508386, 2331142, 2787235, 3770965, 5574470, 5827855, 7541930, 11655710, 12821281, 25642562, 64106405, 128212810]

約数ペア:

[(1, 128212810), (2, 64106405), (5, 25642562), (10, 12821281), (11, 11655710), (17, 7541930), (22, 5827855), (23, 5574470), (34, 3770965), (46, 2787235), (55, 2331142), (85, 1508386), (110, 1165571), (115, 1114894), (121, 1059610), (170, 754193), (187, 685630), (230, 557447), (242, 529805), (253, 506770), (271, 473110), (374, 342815), (391, 327910), (506, 253385), (542, 236555), (605, 211922), (782, 163955), (935, 137126), (1210, 105961), (1265, 101354), (1355, 94622), (1870, 68563), (1955, 65582), (2057, 62330), (2530, 50677), (2710, 47311), (2783, 46070), (2981, 43010), (3910, 32791), (4114, 31165), (4301, 29810), (4607, 27830), (5566, 23035), (5962, 21505), (6233, 20570), (8602, 14905), (9214, 13915), (10285, 12466)]