81896836

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 179032896

約数和(自身を除く): 97136060

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 49, 74, 92, 98, 148, 161, 196, 259, 322, 491, 518, 644, 851, 982, 1036, 1127, 1702, 1813, 1964, 2254, 3404, 3437, 3626, 4508, 5957, 6874, 7252, 11293, 11914, 13748, 18167, 22586, 23828, 24059, 36334, 41699, 45172, 48118, 72668, 79051, 83398, 96236, 127169, 158102, 166796, 254338, 316204, 417841, 508676, 553357, 835682, 890183, 1106714, 1671364, 1780366, 2213428, 2924887, 3560732, 5849774, 11699548, 20474209, 40948418, 81896836]

約数ペア:

[(1, 81896836), (2, 40948418), (4, 20474209), (7, 11699548), (14, 5849774), (23, 3560732), (28, 2924887), (37, 2213428), (46, 1780366), (49, 1671364), (74, 1106714), (92, 890183), (98, 835682), (148, 553357), (161, 508676), (196, 417841), (259, 316204), (322, 254338), (491, 166796), (518, 158102), (644, 127169), (851, 96236), (982, 83398), (1036, 79051), (1127, 72668), (1702, 48118), (1813, 45172), (1964, 41699), (2254, 36334), (3404, 24059), (3437, 23828), (3626, 22586), (4508, 18167), (5957, 13748), (6874, 11914), (7252, 11293)]