321998420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{10613}}^1$

素因数の和:10700

約数の個数: 48

約数和(自身を含む): 711477648

約数和(自身を除く): 389479228

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 740, 820, 1517, 3034, 6068, 7585, 10613, 15170, 21226, 30340, 42452, 53065, 106130, 212260, 392681, 435133, 785362, 870266, 1570724, 1740532, 1963405, 2175665, 3926810, 4351330, 7853620, 8702660, 16099921, 32199842, 64399684, 80499605, 160999210, 321998420]

約数ペア:

[(1, 321998420), (2, 160999210), (4, 80499605), (5, 64399684), (10, 32199842), (20, 16099921), (37, 8702660), (41, 7853620), (74, 4351330), (82, 3926810), (148, 2175665), (164, 1963405), (185, 1740532), (205, 1570724), (370, 870266), (410, 785362), (740, 435133), (820, 392681), (1517, 212260), (3034, 106130), (6068, 53065), (7585, 42452), (10613, 30340), (15170, 21226)]