857188420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{205069}}^1$

素因数の和:205108

約数の個数: 48

約数和(自身を含む): 2067105600

約数和(自身を除く): 1209917180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 205069, 410138, 820276, 1025345, 2050690, 2255759, 3896311, 4101380, 4511518, 7792622, 9023036, 11278795, 15585244, 19481555, 22557590, 38963110, 42859421, 45115180, 77926220, 85718842, 171437684, 214297105, 428594210, 857188420]

約数ペア:

[(1, 857188420), (2, 428594210), (4, 214297105), (5, 171437684), (10, 85718842), (11, 77926220), (19, 45115180), (20, 42859421), (22, 38963110), (38, 22557590), (44, 19481555), (55, 15585244), (76, 11278795), (95, 9023036), (110, 7792622), (190, 4511518), (209, 4101380), (220, 3896311), (380, 2255759), (418, 2050690), (836, 1025345), (1045, 820276), (2090, 410138), (4180, 205069)]