51219045

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 101896704

約数和(自身を除く): 50677659

約数列:

[1, 3, 5, 9, 15, 17, 23, 41, 45, 51, 69, 71, 85, 115, 123, 153, 205, 207, 213, 255, 345, 355, 369, 391, 615, 639, 697, 765, 943, 1035, 1065, 1173, 1207, 1633, 1845, 1955, 2091, 2829, 2911, 3195, 3485, 3519, 3621, 4715, 4899, 5865, 6035, 6273, 8165, 8487, 8733, 10455, 10863, 14145, 14555, 14697, 16031, 17595, 18105, 24495, 26199, 27761, 31365, 42435, 43665, 48093, 49487, 54315, 66953, 73485, 80155, 83283, 130995, 138805, 144279, 148461, 200859, 240465, 247435, 249849, 334765, 416415, 445383, 602577, 721395, 742305, 1004295, 1138201, 1249245, 2226915, 3012885, 3414603, 5691005, 10243809, 17073015, 51219045]

約数ペア:

[(1, 51219045), (3, 17073015), (5, 10243809), (9, 5691005), (15, 3414603), (17, 3012885), (23, 2226915), (41, 1249245), (45, 1138201), (51, 1004295), (69, 742305), (71, 721395), (85, 602577), (115, 445383), (123, 416415), (153, 334765), (205, 249849), (207, 247435), (213, 240465), (255, 200859), (345, 148461), (355, 144279), (369, 138805), (391, 130995), (615, 83283), (639, 80155), (697, 73485), (765, 66953), (943, 54315), (1035, 49487), (1065, 48093), (1173, 43665), (1207, 42435), (1633, 31365), (1845, 27761), (1955, 26199), (2091, 24495), (2829, 18105), (2911, 17595), (3195, 16031), (3485, 14697), (3519, 14555), (3621, 14145), (4715, 10863), (4899, 10455), (5865, 8733), (6035, 8487), (6273, 8165)]