1385840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1019}}^1$

素因数の和:1049

約数の個数: 40

約数和(自身を含む): 3414960

約数和(自身を除く): 2029120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1019, 1360, 2038, 4076, 5095, 8152, 10190, 16304, 17323, 20380, 34646, 40760, 69292, 81520, 86615, 138584, 173230, 277168, 346460, 692920, 1385840]

約数ペア:

[(1, 1385840), (2, 692920), (4, 346460), (5, 277168), (8, 173230), (10, 138584), (16, 86615), (17, 81520), (20, 69292), (34, 40760), (40, 34646), (68, 20380), (80, 17323), (85, 16304), (136, 10190), (170, 8152), (272, 5095), (340, 4076), (680, 2038), (1019, 1360)]