68228745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 123002880

約数和(自身を除く): 54774135

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 79, 103, 129, 195, 215, 237, 309, 395, 515, 559, 645, 1027, 1185, 1339, 1545, 1677, 2795, 3081, 3397, 4017, 4429, 5135, 6695, 8137, 8385, 10191, 13287, 15405, 16985, 20085, 22145, 24411, 40685, 44161, 50955, 57577, 66435, 105781, 122055, 132483, 172731, 220805, 287885, 317343, 349891, 528905, 662415, 863655, 1049673, 1586715, 1749455, 4548583, 5248365, 13645749, 22742915, 68228745]

約数ペア:

[(1, 68228745), (3, 22742915), (5, 13645749), (13, 5248365), (15, 4548583), (39, 1749455), (43, 1586715), (65, 1049673), (79, 863655), (103, 662415), (129, 528905), (195, 349891), (215, 317343), (237, 287885), (309, 220805), (395, 172731), (515, 132483), (559, 122055), (645, 105781), (1027, 66435), (1185, 57577), (1339, 50955), (1545, 44161), (1677, 40685), (2795, 24411), (3081, 22145), (3397, 20085), (4017, 16985), (4429, 15405), (5135, 13287), (6695, 10191), (8137, 8385)]