19728670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21639650

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 79, 85, 113, 130, 158, 170, 221, 226, 395, 442, 565, 790, 1027, 1105, 1130, 1343, 1469, 1921, 2054, 2210, 2686, 2938, 3842, 5135, 6715, 7345, 8927, 9605, 10270, 13430, 14690, 17459, 17854, 19210, 24973, 34918, 44635, 49946, 87295, 89270, 116051, 124865, 151759, 174590, 232102, 249730, 303518, 580255, 758795, 1160510, 1517590, 1972867, 3945734, 9864335, 19728670]

約数ペア:

[(1, 19728670), (2, 9864335), (5, 3945734), (10, 1972867), (13, 1517590), (17, 1160510), (26, 758795), (34, 580255), (65, 303518), (79, 249730), (85, 232102), (113, 174590), (130, 151759), (158, 124865), (170, 116051), (221, 89270), (226, 87295), (395, 49946), (442, 44635), (565, 34918), (790, 24973), (1027, 19210), (1105, 17854), (1130, 17459), (1343, 14690), (1469, 13430), (1921, 10270), (2054, 9605), (2210, 8927), (2686, 7345), (2938, 6715), (3842, 5135)]