81517106

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 149990400

約数和(自身を除く): 68473294

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 61, 122, 139, 209, 253, 278, 418, 437, 506, 671, 874, 1159, 1342, 1403, 1529, 2318, 2641, 2806, 3058, 3197, 4807, 5282, 6394, 8479, 9614, 12749, 15433, 16958, 25498, 26657, 29051, 30866, 35167, 53314, 58102, 60743, 70334, 93269, 121486, 161101, 186538, 195017, 293227, 322202, 390034, 586454, 668173, 1336346, 1772111, 2145187, 3544222, 3705323, 4290374, 7410646, 40758553, 81517106]

約数ペア:

[(1, 81517106), (2, 40758553), (11, 7410646), (19, 4290374), (22, 3705323), (23, 3544222), (38, 2145187), (46, 1772111), (61, 1336346), (122, 668173), (139, 586454), (209, 390034), (253, 322202), (278, 293227), (418, 195017), (437, 186538), (506, 161101), (671, 121486), (874, 93269), (1159, 70334), (1342, 60743), (1403, 58102), (1529, 53314), (2318, 35167), (2641, 30866), (2806, 29051), (3058, 26657), (3197, 25498), (4807, 16958), (5282, 15433), (6394, 12749), (8479, 9614)]