1771997140

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{347}}^1\times {\mathrm{821}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 3748477824

約数和(自身を除く): 1976480684

約数列:

[1, 2, 4, 5, 10, 20, 311, 347, 622, 694, 821, 1244, 1388, 1555, 1642, 1735, 3110, 3284, 3470, 4105, 6220, 6940, 8210, 16420, 107917, 215834, 255331, 284887, 431668, 510662, 539585, 569774, 1021324, 1079170, 1139548, 1276655, 1424435, 2158340, 2553310, 2848870, 5106620, 5697740, 88599857, 177199714, 354399428, 442999285, 885998570, 1771997140]

約数ペア:

[(1, 1771997140), (2, 885998570), (4, 442999285), (5, 354399428), (10, 177199714), (20, 88599857), (311, 5697740), (347, 5106620), (622, 2848870), (694, 2553310), (821, 2158340), (1244, 1424435), (1388, 1276655), (1555, 1139548), (1642, 1079170), (1735, 1021324), (3110, 569774), (3284, 539585), (3470, 510662), (4105, 431668), (6220, 284887), (6940, 255331), (8210, 215834), (16420, 107917)]