161721384

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 460615680

約数和(自身を除く): 298894296

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 41, 44, 66, 67, 82, 88, 123, 132, 134, 164, 201, 223, 246, 264, 268, 328, 402, 446, 451, 492, 536, 669, 737, 804, 892, 902, 984, 1338, 1353, 1474, 1608, 1784, 1804, 2211, 2453, 2676, 2706, 2747, 2948, 3608, 4422, 4906, 5352, 5412, 5494, 5896, 7359, 8241, 8844, 9143, 9812, 10824, 10988, 14718, 14941, 16482, 17688, 18286, 19624, 21976, 27429, 29436, 29882, 30217, 32964, 36572, 44823, 54858, 58872, 59764, 60434, 65928, 73144, 89646, 90651, 100573, 109716, 119528, 120868, 164351, 179292, 181302, 201146, 219432, 241736, 301719, 328702, 358584, 362604, 402292, 493053, 603438, 612581, 657404, 725208, 804584, 986106, 1206876, 1225162, 1314808, 1837743, 1972212, 2413752, 2450324, 3675486, 3944424, 4900648, 6738391, 7350972, 13476782, 14701944, 20215173, 26953564, 40430346, 53907128, 80860692, 161721384]

約数ペア:

[(1, 161721384), (2, 80860692), (3, 53907128), (4, 40430346), (6, 26953564), (8, 20215173), (11, 14701944), (12, 13476782), (22, 7350972), (24, 6738391), (33, 4900648), (41, 3944424), (44, 3675486), (66, 2450324), (67, 2413752), (82, 1972212), (88, 1837743), (123, 1314808), (132, 1225162), (134, 1206876), (164, 986106), (201, 804584), (223, 725208), (246, 657404), (264, 612581), (268, 603438), (328, 493053), (402, 402292), (446, 362604), (451, 358584), (492, 328702), (536, 301719), (669, 241736), (737, 219432), (804, 201146), (892, 181302), (902, 179292), (984, 164351), (1338, 120868), (1353, 119528), (1474, 109716), (1608, 100573), (1784, 90651), (1804, 89646), (2211, 73144), (2453, 65928), (2676, 60434), (2706, 59764), (2747, 58872), (2948, 54858), (3608, 44823), (4422, 36572), (4906, 32964), (5352, 30217), (5412, 29882), (5494, 29436), (5896, 27429), (7359, 21976), (8241, 19624), (8844, 18286), (9143, 17688), (9812, 16482), (10824, 14941), (10988, 14718)]