208201520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113153}}^1$

素因数の和:113189

約数の個数: 40

約数和(自身を含む): 505119456

約数和(自身を除く): 296917936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 113153, 226306, 452612, 565765, 905224, 1131530, 1810448, 2263060, 2602519, 4526120, 5205038, 9052240, 10410076, 13012595, 20820152, 26025190, 41640304, 52050380, 104100760, 208201520]

約数ペア:

[(1, 208201520), (2, 104100760), (4, 52050380), (5, 41640304), (8, 26025190), (10, 20820152), (16, 13012595), (20, 10410076), (23, 9052240), (40, 5205038), (46, 4526120), (80, 2602519), (92, 2263060), (115, 1810448), (184, 1131530), (230, 905224), (368, 565765), (460, 452612), (920, 226306), (1840, 113153)]