21770960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14323}}^1$

素因数の和:14355

約数の個数: 40

約数和(自身を含む): 53285280

約数和(自身を除く): 31514320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14323, 28646, 57292, 71615, 114584, 143230, 229168, 272137, 286460, 544274, 572920, 1088548, 1145840, 1360685, 2177096, 2721370, 4354192, 5442740, 10885480, 21770960]

約数ペア:

[(1, 21770960), (2, 10885480), (4, 5442740), (5, 4354192), (8, 2721370), (10, 2177096), (16, 1360685), (19, 1145840), (20, 1088548), (38, 572920), (40, 544274), (76, 286460), (80, 272137), (95, 229168), (152, 143230), (190, 114584), (304, 71615), (380, 57292), (760, 28646), (1520, 14323)]