81531736

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 128

約数和(自身を含む): 196761600

約数和(自身を除く): 115229864

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 31, 38, 44, 52, 62, 76, 88, 104, 121, 124, 143, 152, 209, 242, 247, 248, 286, 341, 403, 418, 484, 494, 572, 589, 682, 806, 836, 968, 988, 1144, 1178, 1331, 1364, 1573, 1612, 1672, 1976, 2299, 2356, 2662, 2717, 2728, 3146, 3224, 3751, 4433, 4598, 4712, 5324, 5434, 6292, 6479, 7502, 7657, 8866, 9196, 10648, 10868, 12584, 12958, 15004, 15314, 17303, 17732, 18392, 21736, 25289, 25916, 29887, 30008, 30628, 34606, 35464, 41261, 48763, 50578, 51832, 59774, 61256, 69212, 71269, 82522, 84227, 97526, 101156, 119548, 138424, 142538, 165044, 168454, 195052, 202312, 239096, 285076, 328757, 330088, 336908, 390104, 536393, 570152, 657514, 673816, 783959, 926497, 1072786, 1315028, 1567918, 1852994, 2145572, 2630056, 3135836, 3705988, 4291144, 6271672, 7411976, 10191467, 20382934, 40765868, 81531736]

約数ペア:

[(1, 81531736), (2, 40765868), (4, 20382934), (8, 10191467), (11, 7411976), (13, 6271672), (19, 4291144), (22, 3705988), (26, 3135836), (31, 2630056), (38, 2145572), (44, 1852994), (52, 1567918), (62, 1315028), (76, 1072786), (88, 926497), (104, 783959), (121, 673816), (124, 657514), (143, 570152), (152, 536393), (209, 390104), (242, 336908), (247, 330088), (248, 328757), (286, 285076), (341, 239096), (403, 202312), (418, 195052), (484, 168454), (494, 165044), (572, 142538), (589, 138424), (682, 119548), (806, 101156), (836, 97526), (968, 84227), (988, 82522), (1144, 71269), (1178, 69212), (1331, 61256), (1364, 59774), (1573, 51832), (1612, 50578), (1672, 48763), (1976, 41261), (2299, 35464), (2356, 34606), (2662, 30628), (2717, 30008), (2728, 29887), (3146, 25916), (3224, 25289), (3751, 21736), (4433, 18392), (4598, 17732), (4712, 17303), (5324, 15314), (5434, 15004), (6292, 12958), (6479, 12584), (7502, 10868), (7657, 10648), (8866, 9196)]