20393728

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 43782480

約数和(自身を除く): 23388752

約数列:

[1, 2, 4, 8, 16, 29, 32, 41, 58, 64, 67, 82, 116, 128, 134, 164, 232, 256, 268, 328, 464, 536, 656, 928, 1072, 1189, 1312, 1856, 1943, 2144, 2378, 2624, 2747, 3712, 3886, 4288, 4756, 5248, 5494, 7424, 7772, 8576, 9512, 10496, 10988, 15544, 17152, 19024, 21976, 31088, 38048, 43952, 62176, 76096, 79663, 87904, 124352, 152192, 159326, 175808, 248704, 304384, 318652, 351616, 497408, 637304, 703232, 1274608, 2549216, 5098432, 10196864, 20393728]

約数ペア:

[(1, 20393728), (2, 10196864), (4, 5098432), (8, 2549216), (16, 1274608), (29, 703232), (32, 637304), (41, 497408), (58, 351616), (64, 318652), (67, 304384), (82, 248704), (116, 175808), (128, 159326), (134, 152192), (164, 124352), (232, 87904), (256, 79663), (268, 76096), (328, 62176), (464, 43952), (536, 38048), (656, 31088), (928, 21976), (1072, 19024), (1189, 17152), (1312, 15544), (1856, 10988), (1943, 10496), (2144, 9512), (2378, 8576), (2624, 7772), (2747, 7424), (3712, 5494), (3886, 5248), (4288, 4756)]