331484478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 728555520

約数和(自身を除く): 397071042

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 109, 127, 218, 254, 307, 327, 381, 614, 654, 762, 921, 1417, 1651, 1842, 2834, 3302, 3991, 4251, 4953, 7982, 8502, 9906, 11973, 13843, 23946, 27686, 33463, 38989, 41529, 66926, 77978, 83058, 100389, 116967, 179959, 200778, 233934, 359918, 435019, 506857, 539877, 870038, 1013714, 1079754, 1305057, 1520571, 2610114, 3041142, 4249801, 8499602, 12749403, 25498806, 55247413, 110494826, 165742239, 331484478]

約数ペア:

[(1, 331484478), (2, 165742239), (3, 110494826), (6, 55247413), (13, 25498806), (26, 12749403), (39, 8499602), (78, 4249801), (109, 3041142), (127, 2610114), (218, 1520571), (254, 1305057), (307, 1079754), (327, 1013714), (381, 870038), (614, 539877), (654, 506857), (762, 435019), (921, 359918), (1417, 233934), (1651, 200778), (1842, 179959), (2834, 116967), (3302, 100389), (3991, 83058), (4251, 77978), (4953, 66926), (7982, 41529), (8502, 38989), (9906, 33463), (11973, 27686), (13843, 23946)]