128027240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{290971}}^1$

素因数の和:290993

約数の個数: 32

約数和(自身を含む): 314249760

約数和(自身を除く): 186222520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 290971, 581942, 1163884, 1454855, 2327768, 2909710, 3200681, 5819420, 6401362, 11638840, 12802724, 16003405, 25605448, 32006810, 64013620, 128027240]

約数ペア:

[(1, 128027240), (2, 64013620), (4, 32006810), (5, 25605448), (8, 16003405), (10, 12802724), (11, 11638840), (20, 6401362), (22, 5819420), (40, 3200681), (44, 2909710), (55, 2327768), (88, 1454855), (110, 1163884), (220, 581942), (440, 290971)]