18515272912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{135647}}^1$

素因数の和:136123

約数の個数: 40

約数和(自身を含む): 37845792000

約数和(自身を除く): 19330519088

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 449, 898, 1796, 3592, 7184, 8531, 17062, 34124, 68248, 135647, 136496, 271294, 542588, 1085176, 2170352, 2577293, 5154586, 10309172, 20618344, 41236688, 60905503, 121811006, 243622012, 487244024, 974488048, 1157204557, 2314409114, 4628818228, 9257636456, 18515272912]

約数ペア:

[(1, 18515272912), (2, 9257636456), (4, 4628818228), (8, 2314409114), (16, 1157204557), (19, 974488048), (38, 487244024), (76, 243622012), (152, 121811006), (304, 60905503), (449, 41236688), (898, 20618344), (1796, 10309172), (3592, 5154586), (7184, 2577293), (8531, 2170352), (17062, 1085176), (34124, 542588), (68248, 271294), (135647, 136496)]