648189712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 1353564160

約数和(自身を除く): 705374448

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 127, 152, 163, 206, 254, 304, 326, 412, 508, 652, 824, 1016, 1304, 1648, 1957, 2032, 2413, 2608, 3097, 3914, 4826, 6194, 7828, 9652, 12388, 13081, 15656, 16789, 19304, 20701, 24776, 26162, 31312, 33578, 38608, 41402, 49552, 52324, 67156, 82804, 104648, 134312, 165608, 209296, 248539, 268624, 318991, 331216, 393319, 497078, 637982, 786638, 994156, 1275964, 1573276, 1988312, 2132203, 2551928, 3146552, 3976624, 4264406, 5103856, 6293104, 8528812, 17057624, 34115248, 40511857, 81023714, 162047428, 324094856, 648189712]

約数ペア:

[(1, 648189712), (2, 324094856), (4, 162047428), (8, 81023714), (16, 40511857), (19, 34115248), (38, 17057624), (76, 8528812), (103, 6293104), (127, 5103856), (152, 4264406), (163, 3976624), (206, 3146552), (254, 2551928), (304, 2132203), (326, 1988312), (412, 1573276), (508, 1275964), (652, 994156), (824, 786638), (1016, 637982), (1304, 497078), (1648, 393319), (1957, 331216), (2032, 318991), (2413, 268624), (2608, 248539), (3097, 209296), (3914, 165608), (4826, 134312), (6194, 104648), (7828, 82804), (9652, 67156), (12388, 52324), (13081, 49552), (15656, 41402), (16789, 38608), (19304, 33578), (20701, 31312), (24776, 26162)]