778851205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1\times {\mathrm{491}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 1033814016

約数和(自身を除く): 254962811

約数列:

[1, 5, 11, 55, 151, 191, 491, 755, 955, 1661, 2101, 2455, 5401, 8305, 10505, 27005, 28841, 74141, 93781, 144205, 317251, 370705, 468905, 815551, 1031591, 1586255, 4077755, 5157955, 14160931, 70804655, 155770241, 778851205]

約数ペア:

[(1, 778851205), (5, 155770241), (11, 70804655), (55, 14160931), (151, 5157955), (191, 4077755), (491, 1586255), (755, 1031591), (955, 815551), (1661, 468905), (2101, 370705), (2455, 317251), (5401, 144205), (8305, 93781), (10505, 74141), (27005, 28841)]