1257427456

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{349}}^1$

素因数の和:625

約数の個数: 80

約数和(自身を含む): 2612332800

約数和(自身を除く): 1354905344

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 227, 248, 256, 349, 454, 496, 512, 698, 908, 992, 1396, 1816, 1984, 2792, 3632, 3968, 5584, 7037, 7264, 7936, 10819, 11168, 14074, 14528, 15872, 21638, 22336, 28148, 29056, 43276, 44672, 56296, 58112, 79223, 86552, 89344, 112592, 116224, 158446, 173104, 178688, 225184, 316892, 346208, 450368, 633784, 692416, 900736, 1267568, 1384832, 1801472, 2455913, 2535136, 2769664, 3602944, 4911826, 5070272, 5539328, 9823652, 10140544, 19647304, 20281088, 39294608, 40562176, 78589216, 157178432, 314356864, 628713728, 1257427456]

約数ペア:

[(1, 1257427456), (2, 628713728), (4, 314356864), (8, 157178432), (16, 78589216), (31, 40562176), (32, 39294608), (62, 20281088), (64, 19647304), (124, 10140544), (128, 9823652), (227, 5539328), (248, 5070272), (256, 4911826), (349, 3602944), (454, 2769664), (496, 2535136), (512, 2455913), (698, 1801472), (908, 1384832), (992, 1267568), (1396, 900736), (1816, 692416), (1984, 633784), (2792, 450368), (3632, 346208), (3968, 316892), (5584, 225184), (7037, 178688), (7264, 173104), (7936, 158446), (10819, 116224), (11168, 112592), (14074, 89344), (14528, 86552), (15872, 79223), (21638, 58112), (22336, 56296), (28148, 44672), (29056, 43276)]