17985080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 42845760

約数和(自身を除く): 24860680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 113, 115, 173, 184, 226, 230, 346, 452, 460, 565, 692, 865, 904, 920, 1130, 1384, 1730, 2260, 2599, 3460, 3979, 4520, 5198, 6920, 7958, 10396, 12995, 15916, 19549, 19895, 20792, 25990, 31832, 39098, 39790, 51980, 78196, 79580, 97745, 103960, 156392, 159160, 195490, 390980, 449627, 781960, 899254, 1798508, 2248135, 3597016, 4496270, 8992540, 17985080]

約数ペア:

[(1, 17985080), (2, 8992540), (4, 4496270), (5, 3597016), (8, 2248135), (10, 1798508), (20, 899254), (23, 781960), (40, 449627), (46, 390980), (92, 195490), (113, 159160), (115, 156392), (173, 103960), (184, 97745), (226, 79580), (230, 78196), (346, 51980), (452, 39790), (460, 39098), (565, 31832), (692, 25990), (865, 20792), (904, 19895), (920, 19549), (1130, 15916), (1384, 12995), (1730, 10396), (2260, 7958), (2599, 6920), (3460, 5198), (3979, 4520)]