127401320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{809}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 298598400

約数和(自身を除く): 171197080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 809, 1016, 1240, 1270, 1618, 2540, 3236, 3937, 4045, 5080, 6472, 7874, 8090, 15748, 16180, 19685, 25079, 31496, 32360, 39370, 50158, 78740, 100316, 102743, 125395, 157480, 200632, 205486, 250790, 410972, 501580, 513715, 821944, 1003160, 1027430, 2054860, 3185033, 4109720, 6370066, 12740132, 15925165, 25480264, 31850330, 63700660, 127401320]

約数ペア:

[(1, 127401320), (2, 63700660), (4, 31850330), (5, 25480264), (8, 15925165), (10, 12740132), (20, 6370066), (31, 4109720), (40, 3185033), (62, 2054860), (124, 1027430), (127, 1003160), (155, 821944), (248, 513715), (254, 501580), (310, 410972), (508, 250790), (620, 205486), (635, 200632), (809, 157480), (1016, 125395), (1240, 102743), (1270, 100316), (1618, 78740), (2540, 50158), (3236, 39370), (3937, 32360), (4045, 31496), (5080, 25079), (6472, 19685), (7874, 16180), (8090, 15748)]