5128194620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2227

約数の個数: 96

約数和(自身を含む): 11679360000

約数和(自身を除く): 6551165380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 157, 172, 190, 215, 314, 380, 430, 628, 785, 817, 860, 1570, 1634, 1999, 2983, 3140, 3268, 3998, 4085, 5966, 6751, 7996, 8170, 9995, 11932, 13502, 14915, 16340, 19990, 27004, 29830, 33755, 37981, 39980, 59660, 67510, 75962, 85957, 128269, 135020, 151924, 171914, 189905, 256538, 313843, 343828, 379810, 429785, 513076, 627686, 641345, 759620, 859570, 1255372, 1282690, 1569215, 1633183, 1719140, 2565380, 3138430, 3266366, 5963017, 6276860, 6532732, 8165915, 11926034, 13495249, 16331830, 23852068, 26990498, 29815085, 32663660, 53980996, 59630170, 67476245, 119260340, 134952490, 256409731, 269904980, 512819462, 1025638924, 1282048655, 2564097310, 5128194620]

約数ペア:

[(1, 5128194620), (2, 2564097310), (4, 1282048655), (5, 1025638924), (10, 512819462), (19, 269904980), (20, 256409731), (38, 134952490), (43, 119260340), (76, 67476245), (86, 59630170), (95, 53980996), (157, 32663660), (172, 29815085), (190, 26990498), (215, 23852068), (314, 16331830), (380, 13495249), (430, 11926034), (628, 8165915), (785, 6532732), (817, 6276860), (860, 5963017), (1570, 3266366), (1634, 3138430), (1999, 2565380), (2983, 1719140), (3140, 1633183), (3268, 1569215), (3998, 1282690), (4085, 1255372), (5966, 859570), (6751, 759620), (7996, 641345), (8170, 627686), (9995, 513076), (11932, 429785), (13502, 379810), (14915, 343828), (16340, 313843), (19990, 256538), (27004, 189905), (29830, 171914), (33755, 151924), (37981, 135020), (39980, 128269), (59660, 85957), (67510, 75962)]