20731620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3797}}^1$

素因数の和:3829

約数の個数: 96

約数和(自身を含む): 71463168

約数和(自身を除く): 50731548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3797, 5460, 7594, 11391, 15188, 18985, 22782, 26579, 37970, 45564, 49361, 53158, 56955, 75940, 79737, 98722, 106316, 113910, 132895, 148083, 159474, 197444, 227820, 246805, 265790, 296166, 318948, 345527, 398685, 493610, 531580, 592332, 691054, 740415, 797370, 987220, 1036581, 1382108, 1480830, 1594740, 1727635, 2073162, 2961660, 3455270, 4146324, 5182905, 6910540, 10365810, 20731620]

約数ペア:

[(1, 20731620), (2, 10365810), (3, 6910540), (4, 5182905), (5, 4146324), (6, 3455270), (7, 2961660), (10, 2073162), (12, 1727635), (13, 1594740), (14, 1480830), (15, 1382108), (20, 1036581), (21, 987220), (26, 797370), (28, 740415), (30, 691054), (35, 592332), (39, 531580), (42, 493610), (52, 398685), (60, 345527), (65, 318948), (70, 296166), (78, 265790), (84, 246805), (91, 227820), (105, 197444), (130, 159474), (140, 148083), (156, 132895), (182, 113910), (195, 106316), (210, 98722), (260, 79737), (273, 75940), (364, 56955), (390, 53158), (420, 49361), (455, 45564), (546, 37970), (780, 26579), (910, 22782), (1092, 18985), (1365, 15188), (1820, 11391), (2730, 7594), (3797, 5460)]