20161745028

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{457}}^1\times {\mathrm{20771}}^1$

素因数の和:21297

約数の個数: 72

約数和(自身を含む): 51944124960

約数和(自身を除く): 31782379932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 118, 177, 236, 354, 457, 531, 708, 914, 1062, 1371, 1828, 2124, 2742, 4113, 5484, 8226, 16452, 20771, 26963, 41542, 53926, 62313, 80889, 83084, 107852, 124626, 161778, 186939, 242667, 249252, 323556, 373878, 485334, 747756, 970668, 1225489, 2450978, 3676467, 4901956, 7352934, 9492347, 11029401, 14705868, 18984694, 22058802, 28477041, 37969388, 44117604, 56954082, 85431123, 113908164, 170862246, 341724492, 560048473, 1120096946, 1680145419, 2240193892, 3360290838, 5040436257, 6720581676, 10080872514, 20161745028]

約数ペア:

[(1, 20161745028), (2, 10080872514), (3, 6720581676), (4, 5040436257), (6, 3360290838), (9, 2240193892), (12, 1680145419), (18, 1120096946), (36, 560048473), (59, 341724492), (118, 170862246), (177, 113908164), (236, 85431123), (354, 56954082), (457, 44117604), (531, 37969388), (708, 28477041), (914, 22058802), (1062, 18984694), (1371, 14705868), (1828, 11029401), (2124, 9492347), (2742, 7352934), (4113, 4901956), (5484, 3676467), (8226, 2450978), (16452, 1225489), (20771, 970668), (26963, 747756), (41542, 485334), (53926, 373878), (62313, 323556), (80889, 249252), (83084, 242667), (107852, 186939), (124626, 161778)]