2011189900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{13399}}^1$

素因数の和:13511

約数の個数: 72

約数和(自身を含む): 4652480000

約数和(自身を除く): 2641290100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 79, 95, 100, 158, 190, 316, 380, 395, 475, 790, 950, 1501, 1580, 1900, 1975, 3002, 3950, 6004, 7505, 7900, 13399, 15010, 26798, 30020, 37525, 53596, 66995, 75050, 133990, 150100, 254581, 267980, 334975, 509162, 669950, 1018324, 1058521, 1272905, 1339900, 2117042, 2545810, 4234084, 5091620, 5292605, 6364525, 10585210, 12729050, 20111899, 21170420, 25458100, 26463025, 40223798, 52926050, 80447596, 100559495, 105852100, 201118990, 402237980, 502797475, 1005594950, 2011189900]

約数ペア:

[(1, 2011189900), (2, 1005594950), (4, 502797475), (5, 402237980), (10, 201118990), (19, 105852100), (20, 100559495), (25, 80447596), (38, 52926050), (50, 40223798), (76, 26463025), (79, 25458100), (95, 21170420), (100, 20111899), (158, 12729050), (190, 10585210), (316, 6364525), (380, 5292605), (395, 5091620), (475, 4234084), (790, 2545810), (950, 2117042), (1501, 1339900), (1580, 1272905), (1900, 1058521), (1975, 1018324), (3002, 669950), (3950, 509162), (6004, 334975), (7505, 267980), (7900, 254581), (13399, 150100), (15010, 133990), (26798, 75050), (30020, 66995), (37525, 53596)]