20698920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5227}}^1$

素因数の和:5255

約数の個数: 96

約数和(自身を含む): 73401120

約数和(自身を除く): 52702200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5227, 10454, 15681, 20908, 26135, 31362, 41816, 47043, 52270, 57497, 62724, 78405, 94086, 104540, 114994, 125448, 156810, 172491, 188172, 209080, 229988, 235215, 287485, 313620, 344982, 376344, 459976, 470430, 517473, 574970, 627240, 689964, 862455, 940860, 1034946, 1149940, 1379928, 1724910, 1881720, 2069892, 2299880, 2587365, 3449820, 4139784, 5174730, 6899640, 10349460, 20698920]

約数ペア:

[(1, 20698920), (2, 10349460), (3, 6899640), (4, 5174730), (5, 4139784), (6, 3449820), (8, 2587365), (9, 2299880), (10, 2069892), (11, 1881720), (12, 1724910), (15, 1379928), (18, 1149940), (20, 1034946), (22, 940860), (24, 862455), (30, 689964), (33, 627240), (36, 574970), (40, 517473), (44, 470430), (45, 459976), (55, 376344), (60, 344982), (66, 313620), (72, 287485), (88, 235215), (90, 229988), (99, 209080), (110, 188172), (120, 172491), (132, 156810), (165, 125448), (180, 114994), (198, 104540), (220, 94086), (264, 78405), (330, 62724), (360, 57497), (396, 52270), (440, 47043), (495, 41816), (660, 31362), (792, 26135), (990, 20908), (1320, 15681), (1980, 10454), (3960, 5227)]