20566702

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18140498

約数列:

[1, 2, 13, 17, 19, 26, 31, 34, 38, 62, 79, 158, 221, 247, 323, 403, 442, 494, 527, 589, 646, 806, 1027, 1054, 1178, 1343, 1501, 2054, 2449, 2686, 3002, 4199, 4898, 6851, 7657, 8398, 10013, 13702, 15314, 17459, 19513, 20026, 25517, 31837, 34918, 39026, 41633, 46531, 51034, 63674, 83266, 93062, 130169, 260338, 331721, 541229, 604903, 663442, 791027, 1082458, 1209806, 1582054, 10283351, 20566702]

約数ペア:

[(1, 20566702), (2, 10283351), (13, 1582054), (17, 1209806), (19, 1082458), (26, 791027), (31, 663442), (34, 604903), (38, 541229), (62, 331721), (79, 260338), (158, 130169), (221, 93062), (247, 83266), (323, 63674), (403, 51034), (442, 46531), (494, 41633), (527, 39026), (589, 34918), (646, 31837), (806, 25517), (1027, 20026), (1054, 19513), (1178, 17459), (1343, 15314), (1501, 13702), (2054, 10013), (2449, 8398), (2686, 7657), (3002, 6851), (4199, 4898)]