20625540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:909

約数の個数: 96

約数和(自身を含む): 64275456

約数和(自身を除く): 43649916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 853, 930, 1209, 1612, 1706, 1860, 2015, 2418, 2559, 3412, 4030, 4265, 4836, 5118, 6045, 8060, 8530, 10236, 11089, 12090, 12795, 17060, 22178, 24180, 25590, 26443, 33267, 44356, 51180, 52886, 55445, 66534, 79329, 105772, 110890, 132215, 133068, 158658, 166335, 221780, 264430, 317316, 332670, 343759, 396645, 528860, 665340, 687518, 793290, 1031277, 1375036, 1586580, 1718795, 2062554, 3437590, 4125108, 5156385, 6875180, 10312770, 20625540]

約数ペア:

[(1, 20625540), (2, 10312770), (3, 6875180), (4, 5156385), (5, 4125108), (6, 3437590), (10, 2062554), (12, 1718795), (13, 1586580), (15, 1375036), (20, 1031277), (26, 793290), (30, 687518), (31, 665340), (39, 528860), (52, 396645), (60, 343759), (62, 332670), (65, 317316), (78, 264430), (93, 221780), (124, 166335), (130, 158658), (155, 133068), (156, 132215), (186, 110890), (195, 105772), (260, 79329), (310, 66534), (372, 55445), (390, 52886), (403, 51180), (465, 44356), (620, 33267), (780, 26443), (806, 25590), (853, 24180), (930, 22178), (1209, 17060), (1612, 12795), (1706, 12090), (1860, 11089), (2015, 10236), (2418, 8530), (2559, 8060), (3412, 6045), (4030, 5118), (4265, 4836)]