18871808

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 22375552

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 41, 58, 62, 64, 82, 116, 124, 128, 164, 232, 248, 256, 328, 464, 496, 512, 656, 899, 928, 992, 1189, 1271, 1312, 1798, 1856, 1984, 2378, 2542, 2624, 3596, 3712, 3968, 4756, 5084, 5248, 7192, 7424, 7936, 9512, 10168, 10496, 14384, 14848, 15872, 19024, 20336, 20992, 28768, 36859, 38048, 40672, 57536, 73718, 76096, 81344, 115072, 147436, 152192, 162688, 230144, 294872, 304384, 325376, 460288, 589744, 608768, 650752, 1179488, 2358976, 4717952, 9435904, 18871808]

約数ペア:

[(1, 18871808), (2, 9435904), (4, 4717952), (8, 2358976), (16, 1179488), (29, 650752), (31, 608768), (32, 589744), (41, 460288), (58, 325376), (62, 304384), (64, 294872), (82, 230144), (116, 162688), (124, 152192), (128, 147436), (164, 115072), (232, 81344), (248, 76096), (256, 73718), (328, 57536), (464, 40672), (496, 38048), (512, 36859), (656, 28768), (899, 20992), (928, 20336), (992, 19024), (1189, 15872), (1271, 14848), (1312, 14384), (1798, 10496), (1856, 10168), (1984, 9512), (2378, 7936), (2542, 7424), (2624, 7192), (3596, 5248), (3712, 5084), (3968, 4756)]