640470768

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{887}}^1$

素因数の和:1219

約数の個数: 120

約数和(自身を含む): 1933126272

約数和(自身を除く): 1292655504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 307, 336, 392, 588, 614, 784, 887, 921, 1176, 1228, 1774, 1842, 2149, 2352, 2456, 2661, 3548, 3684, 4298, 4912, 5322, 6209, 6447, 7096, 7368, 8596, 10644, 12418, 12894, 14192, 14736, 15043, 17192, 18627, 21288, 24836, 25788, 30086, 34384, 37254, 42576, 43463, 45129, 49672, 51576, 60172, 74508, 86926, 90258, 99344, 103152, 120344, 130389, 149016, 173852, 180516, 240688, 260778, 272309, 298032, 347704, 361032, 521556, 544618, 695408, 722064, 816927, 1043112, 1089236, 1633854, 1906163, 2086224, 2178472, 3267708, 3812326, 4356944, 5718489, 6535416, 7624652, 11436978, 13070832, 13343141, 15249304, 22873956, 26686282, 30498608, 40029423, 45747912, 53372564, 80058846, 91495824, 106745128, 160117692, 213490256, 320235384, 640470768]

約数ペア:

[(1, 640470768), (2, 320235384), (3, 213490256), (4, 160117692), (6, 106745128), (7, 91495824), (8, 80058846), (12, 53372564), (14, 45747912), (16, 40029423), (21, 30498608), (24, 26686282), (28, 22873956), (42, 15249304), (48, 13343141), (49, 13070832), (56, 11436978), (84, 7624652), (98, 6535416), (112, 5718489), (147, 4356944), (168, 3812326), (196, 3267708), (294, 2178472), (307, 2086224), (336, 1906163), (392, 1633854), (588, 1089236), (614, 1043112), (784, 816927), (887, 722064), (921, 695408), (1176, 544618), (1228, 521556), (1774, 361032), (1842, 347704), (2149, 298032), (2352, 272309), (2456, 260778), (2661, 240688), (3548, 180516), (3684, 173852), (4298, 149016), (4912, 130389), (5322, 120344), (6209, 103152), (6447, 99344), (7096, 90258), (7368, 86926), (8596, 74508), (10644, 60172), (12418, 51576), (12894, 49672), (14192, 45129), (14736, 43463), (15043, 42576), (17192, 37254), (18627, 34384), (21288, 30086), (24836, 25788)]