18855520

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{617}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 25996448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 617, 764, 955, 1234, 1528, 1910, 2468, 3056, 3085, 3820, 4936, 6112, 6170, 7640, 9872, 12340, 15280, 19744, 24680, 30560, 49360, 98720, 117847, 235694, 471388, 589235, 942776, 1178470, 1885552, 2356940, 3771104, 4713880, 9427760, 18855520]

約数ペア:

[(1, 18855520), (2, 9427760), (4, 4713880), (5, 3771104), (8, 2356940), (10, 1885552), (16, 1178470), (20, 942776), (32, 589235), (40, 471388), (80, 235694), (160, 117847), (191, 98720), (382, 49360), (617, 30560), (764, 24680), (955, 19744), (1234, 15280), (1528, 12340), (1910, 9872), (2468, 7640), (3056, 6170), (3085, 6112), (3820, 4936)]