81622480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53699}}^1$

素因数の和:53731

約数の個数: 40

約数和(自身を含む): 199764000

約数和(自身を除く): 118141520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53699, 107398, 214796, 268495, 429592, 536990, 859184, 1020281, 1073980, 2040562, 2147960, 4081124, 4295920, 5101405, 8162248, 10202810, 16324496, 20405620, 40811240, 81622480]

約数ペア:

[(1, 81622480), (2, 40811240), (4, 20405620), (5, 16324496), (8, 10202810), (10, 8162248), (16, 5101405), (19, 4295920), (20, 4081124), (38, 2147960), (40, 2040562), (76, 1073980), (80, 1020281), (95, 859184), (152, 536990), (190, 429592), (304, 268495), (380, 214796), (760, 107398), (1520, 53699)]