20195568730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{7523}}^1$

素因数の和:7819

約数の個数: 64

約数和(自身を含む): 39004416000

約数和(自身を除く): 18808847270

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 199, 355, 398, 710, 995, 1349, 1990, 2698, 3781, 6745, 7523, 7562, 13490, 14129, 15046, 18905, 28258, 37615, 37810, 70645, 75230, 141290, 142937, 268451, 285874, 534133, 536902, 714685, 1068266, 1342255, 1429370, 1497077, 2670665, 2684510, 2994154, 5341330, 7485385, 10148527, 14970770, 20297054, 28444463, 50742635, 56888926, 101485270, 106292467, 142222315, 212584934, 284444630, 531462335, 1062924670, 2019556873, 4039113746, 10097784365, 20195568730]

約数ペア:

[(1, 20195568730), (2, 10097784365), (5, 4039113746), (10, 2019556873), (19, 1062924670), (38, 531462335), (71, 284444630), (95, 212584934), (142, 142222315), (190, 106292467), (199, 101485270), (355, 56888926), (398, 50742635), (710, 28444463), (995, 20297054), (1349, 14970770), (1990, 10148527), (2698, 7485385), (3781, 5341330), (6745, 2994154), (7523, 2684510), (7562, 2670665), (13490, 1497077), (14129, 1429370), (15046, 1342255), (18905, 1068266), (28258, 714685), (37615, 536902), (37810, 534133), (70645, 285874), (75230, 268451), (141290, 142937)]