1556551335

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 2714112000

約数和(自身を除く): 1157560665

約数列:

[1, 3, 5, 15, 23, 37, 61, 69, 111, 115, 183, 185, 305, 345, 555, 851, 915, 1403, 1999, 2257, 2553, 4209, 4255, 5997, 6771, 7015, 9995, 11285, 12765, 21045, 29985, 33855, 45977, 51911, 73963, 121939, 137931, 155733, 221889, 229885, 259555, 365817, 369815, 609695, 689655, 778665, 1109445, 1701149, 1829085, 2804597, 4511743, 5103447, 8413791, 8505745, 13535229, 14022985, 22558715, 25517235, 42068955, 67676145, 103770089, 311310267, 518850445, 1556551335]

約数ペア:

[(1, 1556551335), (3, 518850445), (5, 311310267), (15, 103770089), (23, 67676145), (37, 42068955), (61, 25517235), (69, 22558715), (111, 14022985), (115, 13535229), (183, 8505745), (185, 8413791), (305, 5103447), (345, 4511743), (555, 2804597), (851, 1829085), (915, 1701149), (1403, 1109445), (1999, 778665), (2257, 689655), (2553, 609695), (4209, 369815), (4255, 365817), (5997, 259555), (6771, 229885), (7015, 221889), (9995, 155733), (11285, 137931), (12765, 121939), (21045, 73963), (29985, 51911), (33855, 45977)]