280897792

素因数分解:

$2^8\times 7^4\times {\mathrm{457}}^1$

素因数の和:501

約数の個数: 90

約数和(自身を含む): 655540438

約数和(自身を除く): 374642646

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 343, 392, 448, 457, 686, 784, 896, 914, 1372, 1568, 1792, 1828, 2401, 2744, 3136, 3199, 3656, 4802, 5488, 6272, 6398, 7312, 9604, 10976, 12544, 12796, 14624, 19208, 21952, 22393, 25592, 29248, 38416, 43904, 44786, 51184, 58496, 76832, 87808, 89572, 102368, 116992, 153664, 156751, 179144, 204736, 307328, 313502, 358288, 409472, 614656, 627004, 716576, 818944, 1097257, 1254008, 1433152, 2194514, 2508016, 2866304, 4389028, 5016032, 5732608, 8778056, 10032064, 17556112, 20064128, 35112224, 40128256, 70224448, 140448896, 280897792]

約数ペア:

[(1, 280897792), (2, 140448896), (4, 70224448), (7, 40128256), (8, 35112224), (14, 20064128), (16, 17556112), (28, 10032064), (32, 8778056), (49, 5732608), (56, 5016032), (64, 4389028), (98, 2866304), (112, 2508016), (128, 2194514), (196, 1433152), (224, 1254008), (256, 1097257), (343, 818944), (392, 716576), (448, 627004), (457, 614656), (686, 409472), (784, 358288), (896, 313502), (914, 307328), (1372, 204736), (1568, 179144), (1792, 156751), (1828, 153664), (2401, 116992), (2744, 102368), (3136, 89572), (3199, 87808), (3656, 76832), (4802, 58496), (5488, 51184), (6272, 44786), (6398, 43904), (7312, 38416), (9604, 29248), (10976, 25592), (12544, 22393), (12796, 21952), (14624, 19208)]