18841000

素因数分解:

$2^3\times 5^3\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 25974680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 125, 166, 200, 227, 250, 332, 415, 454, 500, 664, 830, 908, 1000, 1135, 1660, 1816, 2075, 2270, 3320, 4150, 4540, 5675, 8300, 9080, 10375, 11350, 16600, 18841, 20750, 22700, 28375, 37682, 41500, 45400, 56750, 75364, 83000, 94205, 113500, 150728, 188410, 227000, 376820, 471025, 753640, 942050, 1884100, 2355125, 3768200, 4710250, 9420500, 18841000]

約数ペア:

[(1, 18841000), (2, 9420500), (4, 4710250), (5, 3768200), (8, 2355125), (10, 1884100), (20, 942050), (25, 753640), (40, 471025), (50, 376820), (83, 227000), (100, 188410), (125, 150728), (166, 113500), (200, 94205), (227, 83000), (250, 75364), (332, 56750), (415, 45400), (454, 41500), (500, 37682), (664, 28375), (830, 22700), (908, 20750), (1000, 18841), (1135, 16600), (1660, 11350), (1816, 10375), (2075, 9080), (2270, 8300), (3320, 5675), (4150, 4540)]