18956110

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 37033200

約数和(自身を除く): 18077090

約数列:

[1, 2, 5, 10, 19, 38, 59, 89, 95, 118, 178, 190, 295, 361, 445, 590, 722, 890, 1121, 1691, 1805, 2242, 3382, 3610, 5251, 5605, 8455, 10502, 11210, 16910, 21299, 26255, 32129, 42598, 52510, 64258, 99769, 106495, 160645, 199538, 212990, 321290, 498845, 997690, 1895611, 3791222, 9478055, 18956110]

約数ペア:

[(1, 18956110), (2, 9478055), (5, 3791222), (10, 1895611), (19, 997690), (38, 498845), (59, 321290), (89, 212990), (95, 199538), (118, 160645), (178, 106495), (190, 99769), (295, 64258), (361, 52510), (445, 42598), (590, 32129), (722, 26255), (890, 21299), (1121, 16910), (1691, 11210), (1805, 10502), (2242, 8455), (3382, 5605), (3610, 5251)]