68399890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{313}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 136337544

約数和(自身を除く): 67937654

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 313, 410, 533, 626, 1066, 1565, 1681, 2665, 3130, 3362, 4069, 5330, 8138, 8405, 12833, 16810, 20345, 21853, 25666, 40690, 43706, 64165, 109265, 128330, 166829, 218530, 333658, 526153, 834145, 1052306, 1668290, 2630765, 5261530, 6839989, 13679978, 34199945, 68399890]

約数ペア:

[(1, 68399890), (2, 34199945), (5, 13679978), (10, 6839989), (13, 5261530), (26, 2630765), (41, 1668290), (65, 1052306), (82, 834145), (130, 526153), (205, 333658), (313, 218530), (410, 166829), (533, 128330), (626, 109265), (1066, 64165), (1565, 43706), (1681, 40690), (2665, 25666), (3130, 21853), (3362, 20345), (4069, 16810), (5330, 12833), (8138, 8405)]