981388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 1862000

約数和(自身を除く): 880612

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 349, 698, 703, 1396, 1406, 2812, 6631, 12913, 13262, 25826, 26524, 51652, 245347, 490694, 981388]

約数ペア:

[(1, 981388), (2, 490694), (4, 245347), (19, 51652), (37, 26524), (38, 25826), (74, 13262), (76, 12913), (148, 6631), (349, 2812), (698, 1406), (703, 1396)]