128376495

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 254913120

約数和(自身を除く): 126536625

約数列:

[1, 3, 5, 9, 13, 15, 27, 37, 39, 45, 65, 81, 111, 117, 135, 185, 195, 333, 351, 405, 481, 555, 585, 659, 999, 1053, 1443, 1665, 1755, 1977, 2405, 2997, 3295, 4329, 4995, 5265, 5931, 7215, 8567, 9885, 12987, 14985, 17793, 21645, 24383, 25701, 29655, 38961, 42835, 53379, 64935, 73149, 77103, 88965, 121915, 128505, 194805, 219447, 231309, 266895, 316979, 365745, 385515, 658341, 693927, 950937, 1097235, 1156545, 1584895, 1975023, 2852811, 3291705, 3469635, 4754685, 8558433, 9875115, 14264055, 25675299, 42792165, 128376495]

約数ペア:

[(1, 128376495), (3, 42792165), (5, 25675299), (9, 14264055), (13, 9875115), (15, 8558433), (27, 4754685), (37, 3469635), (39, 3291705), (45, 2852811), (65, 1975023), (81, 1584895), (111, 1156545), (117, 1097235), (135, 950937), (185, 693927), (195, 658341), (333, 385515), (351, 365745), (405, 316979), (481, 266895), (555, 231309), (585, 219447), (659, 194805), (999, 128505), (1053, 121915), (1443, 88965), (1665, 77103), (1755, 73149), (1977, 64935), (2405, 53379), (2997, 42835), (3295, 38961), (4329, 29655), (4995, 25701), (5265, 24383), (5931, 21645), (7215, 17793), (8567, 14985), (9885, 12987)]