20512373986

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{743}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 34252807680

約数和(自身を除く): 13740433694

約数列:

[1, 2, 13, 26, 61, 103, 122, 169, 206, 338, 743, 793, 1339, 1486, 1586, 2197, 2678, 4394, 6283, 9659, 10309, 12566, 17407, 19318, 20618, 34814, 45323, 76529, 81679, 90646, 125567, 134017, 153058, 163358, 226291, 251134, 268034, 452582, 589199, 994877, 1061827, 1178398, 1632371, 1989754, 2123654, 3264742, 4668269, 7659587, 9336538, 12933401, 13803751, 15319174, 25866802, 27607502, 60687497, 99574631, 121374994, 168134213, 199149262, 336268426, 788937461, 1577874922, 10256186993, 20512373986]

約数ペア:

[(1, 20512373986), (2, 10256186993), (13, 1577874922), (26, 788937461), (61, 336268426), (103, 199149262), (122, 168134213), (169, 121374994), (206, 99574631), (338, 60687497), (743, 27607502), (793, 25866802), (1339, 15319174), (1486, 13803751), (1586, 12933401), (2197, 9336538), (2678, 7659587), (4394, 4668269), (6283, 3264742), (9659, 2123654), (10309, 1989754), (12566, 1632371), (17407, 1178398), (19318, 1061827), (20618, 994877), (34814, 589199), (45323, 452582), (76529, 268034), (81679, 251134), (90646, 226291), (125567, 163358), (134017, 153058)]