20517012

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34519788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 71, 92, 138, 142, 207, 213, 276, 284, 349, 414, 426, 639, 698, 828, 852, 1047, 1278, 1396, 1633, 2094, 2556, 3141, 3266, 4188, 4899, 6282, 6532, 8027, 9798, 12564, 14697, 16054, 19596, 24081, 24779, 29394, 32108, 48162, 49558, 58788, 72243, 74337, 96324, 99116, 144486, 148674, 223011, 288972, 297348, 446022, 569917, 892044, 1139834, 1709751, 2279668, 3419502, 5129253, 6839004, 10258506, 20517012]

約数ペア:

[(1, 20517012), (2, 10258506), (3, 6839004), (4, 5129253), (6, 3419502), (9, 2279668), (12, 1709751), (18, 1139834), (23, 892044), (36, 569917), (46, 446022), (69, 297348), (71, 288972), (92, 223011), (138, 148674), (142, 144486), (207, 99116), (213, 96324), (276, 74337), (284, 72243), (349, 58788), (414, 49558), (426, 48162), (639, 32108), (698, 29394), (828, 24779), (852, 24081), (1047, 19596), (1278, 16054), (1396, 14697), (1633, 12564), (2094, 9798), (2556, 8027), (3141, 6532), (3266, 6282), (4188, 4899)]