20762425305

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{67961}}^1$

素因数の和:68079

約数の個数: 64

約数和(自身を含む): 38624163840

約数和(自身を除く): 17861738535

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 73, 93, 135, 155, 219, 279, 365, 465, 657, 837, 1095, 1395, 1971, 2263, 3285, 4185, 6789, 9855, 11315, 20367, 33945, 61101, 67961, 101835, 203883, 305505, 339805, 611649, 1019415, 1834947, 2106791, 3058245, 4961153, 6320373, 9174735, 10533955, 14883459, 18961119, 24805765, 31601865, 44650377, 56883357, 74417295, 94805595, 133951131, 153795743, 223251885, 284416785, 461387229, 669755655, 768978715, 1384161687, 2306936145, 4152485061, 6920808435, 20762425305]

約数ペア:

[(1, 20762425305), (3, 6920808435), (5, 4152485061), (9, 2306936145), (15, 1384161687), (27, 768978715), (31, 669755655), (45, 461387229), (73, 284416785), (93, 223251885), (135, 153795743), (155, 133951131), (219, 94805595), (279, 74417295), (365, 56883357), (465, 44650377), (657, 31601865), (837, 24805765), (1095, 18961119), (1395, 14883459), (1971, 10533955), (2263, 9174735), (3285, 6320373), (4185, 4961153), (6789, 3058245), (9855, 2106791), (11315, 1834947), (20367, 1019415), (33945, 611649), (61101, 339805), (67961, 305505), (101835, 203883)]