40816020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13883}}^1$

素因数の和:13909

約数の個数: 72

約数和(自身を含む): 132953184

約数和(自身を除く): 92137164

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 13883, 27766, 41649, 55532, 69415, 83298, 97181, 138830, 166596, 194362, 208245, 277660, 291543, 388724, 416490, 485905, 583086, 680267, 832980, 971810, 1166172, 1360534, 1457715, 1943620, 2040801, 2721068, 2915430, 3401335, 4081602, 5830860, 6802670, 8163204, 10204005, 13605340, 20408010, 40816020]

約数ペア:

[(1, 40816020), (2, 20408010), (3, 13605340), (4, 10204005), (5, 8163204), (6, 6802670), (7, 5830860), (10, 4081602), (12, 3401335), (14, 2915430), (15, 2721068), (20, 2040801), (21, 1943620), (28, 1457715), (30, 1360534), (35, 1166172), (42, 971810), (49, 832980), (60, 680267), (70, 583086), (84, 485905), (98, 416490), (105, 388724), (140, 291543), (147, 277660), (196, 208245), (210, 194362), (245, 166596), (294, 138830), (420, 97181), (490, 83298), (588, 69415), (735, 55532), (980, 41649), (1470, 27766), (2940, 13883)]