20218563872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{383}}^1\times {\mathrm{1123}}^1$

素因数の和:1642

約数の個数: 96

約数和(自身を含む): 43398125568

約数和(自身を除く): 23179561696

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 113, 208, 226, 383, 416, 452, 766, 904, 1123, 1469, 1532, 1808, 2246, 2938, 3064, 3616, 4492, 4979, 5876, 6128, 8984, 9958, 11752, 12256, 14599, 17968, 19916, 23504, 29198, 35936, 39832, 43279, 47008, 58396, 79664, 86558, 116792, 126899, 159328, 173116, 233584, 253798, 346232, 430109, 467168, 507596, 562627, 692464, 860218, 1015192, 1125254, 1384928, 1649687, 1720436, 2030384, 2250508, 3299374, 3440872, 4060768, 4501016, 5591417, 6598748, 6881744, 9002032, 11182834, 13197496, 13763488, 18004064, 22365668, 26394992, 44731336, 48602317, 52789984, 89462672, 97204634, 178925344, 194409268, 388818536, 631830121, 777637072, 1263660242, 1555274144, 2527320484, 5054640968, 10109281936, 20218563872]

約数ペア:

[(1, 20218563872), (2, 10109281936), (4, 5054640968), (8, 2527320484), (13, 1555274144), (16, 1263660242), (26, 777637072), (32, 631830121), (52, 388818536), (104, 194409268), (113, 178925344), (208, 97204634), (226, 89462672), (383, 52789984), (416, 48602317), (452, 44731336), (766, 26394992), (904, 22365668), (1123, 18004064), (1469, 13763488), (1532, 13197496), (1808, 11182834), (2246, 9002032), (2938, 6881744), (3064, 6598748), (3616, 5591417), (4492, 4501016), (4979, 4060768), (5876, 3440872), (6128, 3299374), (8984, 2250508), (9958, 2030384), (11752, 1720436), (12256, 1649687), (14599, 1384928), (17968, 1125254), (19916, 1015192), (23504, 860218), (29198, 692464), (35936, 562627), (39832, 507596), (43279, 467168), (47008, 430109), (58396, 346232), (79664, 253798), (86558, 233584), (116792, 173116), (126899, 159328)]