19020880

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3257}}^1$

素因数の和:3343

約数の個数: 40

約数和(自身を含む): 44843112

約数和(自身を除く): 25822232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3257, 5840, 6514, 13028, 16285, 26056, 32570, 52112, 65140, 130280, 237761, 260560, 475522, 951044, 1188805, 1902088, 2377610, 3804176, 4755220, 9510440, 19020880]

約数ペア:

[(1, 19020880), (2, 9510440), (4, 4755220), (5, 3804176), (8, 2377610), (10, 1902088), (16, 1188805), (20, 951044), (40, 475522), (73, 260560), (80, 237761), (146, 130280), (292, 65140), (365, 52112), (584, 32570), (730, 26056), (1168, 16285), (1460, 13028), (2920, 6514), (3257, 5840)]