291217220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{10559}}^1$

素因数の和:10772

約数の個数: 48

約数和(自身を含む): 702535680

約数和(自身を除く): 411318460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 10559, 13790, 21118, 27580, 42236, 52795, 73913, 105590, 147826, 211180, 295652, 369565, 739130, 1478260, 2080123, 4160246, 8320492, 10400615, 14560861, 20801230, 29121722, 41602460, 58243444, 72804305, 145608610, 291217220]

約数ペア:

[(1, 291217220), (2, 145608610), (4, 72804305), (5, 58243444), (7, 41602460), (10, 29121722), (14, 20801230), (20, 14560861), (28, 10400615), (35, 8320492), (70, 4160246), (140, 2080123), (197, 1478260), (394, 739130), (788, 369565), (985, 295652), (1379, 211180), (1970, 147826), (2758, 105590), (3940, 73913), (5516, 52795), (6895, 42236), (10559, 27580), (13790, 21118)]