1991376112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1\times {\mathrm{977}}^1$

素因数の和:1346

約数の個数: 80

約数和(自身を含む): 4341052512

約数和(自身を除く): 2349676400

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 313, 407, 592, 626, 814, 977, 1252, 1628, 1954, 2504, 3256, 3443, 3908, 5008, 6512, 6886, 7816, 10747, 11581, 13772, 15632, 21494, 23162, 27544, 36149, 42988, 46324, 55088, 72298, 85976, 92648, 127391, 144596, 171952, 185296, 254782, 289192, 305801, 397639, 509564, 578384, 611602, 795278, 1019128, 1223204, 1590556, 2038256, 2446408, 3181112, 3363811, 4892816, 6362224, 6727622, 11314637, 13455244, 22629274, 26910488, 45258548, 53820976, 90517096, 124461007, 181034192, 248922014, 497844028, 995688056, 1991376112]

約数ペア:

[(1, 1991376112), (2, 995688056), (4, 497844028), (8, 248922014), (11, 181034192), (16, 124461007), (22, 90517096), (37, 53820976), (44, 45258548), (74, 26910488), (88, 22629274), (148, 13455244), (176, 11314637), (296, 6727622), (313, 6362224), (407, 4892816), (592, 3363811), (626, 3181112), (814, 2446408), (977, 2038256), (1252, 1590556), (1628, 1223204), (1954, 1019128), (2504, 795278), (3256, 611602), (3443, 578384), (3908, 509564), (5008, 397639), (6512, 305801), (6886, 289192), (7816, 254782), (10747, 185296), (11581, 171952), (13772, 144596), (15632, 127391), (21494, 92648), (23162, 85976), (27544, 72298), (36149, 55088), (42988, 46324)]