12131240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 30240000

約数和(自身を除く): 18108760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 349, 395, 440, 632, 698, 790, 869, 1396, 1580, 1738, 1745, 2792, 3160, 3476, 3490, 3839, 4345, 6952, 6980, 7678, 8690, 13960, 15356, 17380, 19195, 27571, 30712, 34760, 38390, 55142, 76780, 110284, 137855, 153560, 220568, 275710, 303281, 551420, 606562, 1102840, 1213124, 1516405, 2426248, 3032810, 6065620, 12131240]

約数ペア:

[(1, 12131240), (2, 6065620), (4, 3032810), (5, 2426248), (8, 1516405), (10, 1213124), (11, 1102840), (20, 606562), (22, 551420), (40, 303281), (44, 275710), (55, 220568), (79, 153560), (88, 137855), (110, 110284), (158, 76780), (220, 55142), (316, 38390), (349, 34760), (395, 30712), (440, 27571), (632, 19195), (698, 17380), (790, 15356), (869, 13960), (1396, 8690), (1580, 7678), (1738, 6980), (1745, 6952), (2792, 4345), (3160, 3839), (3476, 3490)]