81906630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2039}}^1$

素因数の和:2165

約数の個数: 64

約数和(自身を含む): 213857280

約数和(自身を除く): 131950650

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 103, 130, 195, 206, 309, 390, 515, 618, 1030, 1339, 1545, 2039, 2678, 3090, 4017, 4078, 6117, 6695, 8034, 10195, 12234, 13390, 20085, 20390, 26507, 30585, 40170, 53014, 61170, 79521, 132535, 159042, 210017, 265070, 397605, 420034, 630051, 795210, 1050085, 1260102, 2100170, 2730221, 3150255, 5460442, 6300510, 8190663, 13651105, 16381326, 27302210, 40953315, 81906630]

約数ペア:

[(1, 81906630), (2, 40953315), (3, 27302210), (5, 16381326), (6, 13651105), (10, 8190663), (13, 6300510), (15, 5460442), (26, 3150255), (30, 2730221), (39, 2100170), (65, 1260102), (78, 1050085), (103, 795210), (130, 630051), (195, 420034), (206, 397605), (309, 265070), (390, 210017), (515, 159042), (618, 132535), (1030, 79521), (1339, 61170), (1545, 53014), (2039, 40170), (2678, 30585), (3090, 26507), (4017, 20390), (4078, 20085), (6117, 13390), (6695, 12234), (8034, 10195)]