68707340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{659}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 156008160

約数和(自身を除く): 87300820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 401, 659, 802, 1318, 1604, 2005, 2636, 3295, 4010, 5213, 6590, 8020, 8567, 10426, 13180, 17134, 20852, 26065, 34268, 42835, 52130, 85670, 104260, 171340, 264259, 528518, 1057036, 1321295, 2642590, 3435367, 5285180, 6870734, 13741468, 17176835, 34353670, 68707340]

約数ペア:

[(1, 68707340), (2, 34353670), (4, 17176835), (5, 13741468), (10, 6870734), (13, 5285180), (20, 3435367), (26, 2642590), (52, 1321295), (65, 1057036), (130, 528518), (260, 264259), (401, 171340), (659, 104260), (802, 85670), (1318, 52130), (1604, 42835), (2005, 34268), (2636, 26065), (3295, 20852), (4010, 17134), (5213, 13180), (6590, 10426), (8020, 8567)]