256476128

素因数分解:

$2^5\times {\mathrm{23}}^2\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 72

約数和(自身を含む): 536520600

約数和(自身を除く): 280044472

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 109, 139, 184, 218, 278, 368, 436, 529, 556, 736, 872, 1058, 1112, 1744, 2116, 2224, 2507, 3197, 3488, 4232, 4448, 5014, 6394, 8464, 10028, 12788, 15151, 16928, 20056, 25576, 30302, 40112, 51152, 57661, 60604, 73531, 80224, 102304, 115322, 121208, 147062, 230644, 242416, 294124, 348473, 461288, 484832, 588248, 696946, 922576, 1176496, 1393892, 1845152, 2352992, 2787784, 5575568, 8014879, 11151136, 16029758, 32059516, 64119032, 128238064, 256476128]

約数ペア:

[(1, 256476128), (2, 128238064), (4, 64119032), (8, 32059516), (16, 16029758), (23, 11151136), (32, 8014879), (46, 5575568), (92, 2787784), (109, 2352992), (139, 1845152), (184, 1393892), (218, 1176496), (278, 922576), (368, 696946), (436, 588248), (529, 484832), (556, 461288), (736, 348473), (872, 294124), (1058, 242416), (1112, 230644), (1744, 147062), (2116, 121208), (2224, 115322), (2507, 102304), (3197, 80224), (3488, 73531), (4232, 60604), (4448, 57661), (5014, 51152), (6394, 40112), (8464, 30302), (10028, 25576), (12788, 20056), (15151, 16928)]