1900994920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4320443}}^1$

素因数の和:4320465

約数の個数: 32

約数和(自身を含む): 4666079520

約数和(自身を除く): 2765084600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4320443, 8640886, 17281772, 21602215, 34563544, 43204430, 47524873, 86408860, 95049746, 172817720, 190099492, 237624365, 380198984, 475248730, 950497460, 1900994920]

約数ペア:

[(1, 1900994920), (2, 950497460), (4, 475248730), (5, 380198984), (8, 237624365), (10, 190099492), (11, 172817720), (20, 95049746), (22, 86408860), (40, 47524873), (44, 43204430), (55, 34563544), (88, 21602215), (110, 17281772), (220, 8640886), (440, 4320443)]