280093408

素因数分解:

$2^5\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2447}}^1$

素因数の和:2544

約数の個数: 72

約数和(自身を含む): 650516832

約数和(自身を除く): 370423424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 73, 98, 112, 146, 196, 224, 292, 392, 511, 584, 784, 1022, 1168, 1568, 2044, 2336, 2447, 3577, 4088, 4894, 7154, 8176, 9788, 14308, 16352, 17129, 19576, 28616, 34258, 39152, 57232, 68516, 78304, 114464, 119903, 137032, 178631, 239806, 274064, 357262, 479612, 548128, 714524, 959224, 1250417, 1429048, 1918448, 2500834, 2858096, 3836896, 5001668, 5716192, 8752919, 10003336, 17505838, 20006672, 35011676, 40013344, 70023352, 140046704, 280093408]

約数ペア:

[(1, 280093408), (2, 140046704), (4, 70023352), (7, 40013344), (8, 35011676), (14, 20006672), (16, 17505838), (28, 10003336), (32, 8752919), (49, 5716192), (56, 5001668), (73, 3836896), (98, 2858096), (112, 2500834), (146, 1918448), (196, 1429048), (224, 1250417), (292, 959224), (392, 714524), (511, 548128), (584, 479612), (784, 357262), (1022, 274064), (1168, 239806), (1568, 178631), (2044, 137032), (2336, 119903), (2447, 114464), (3577, 78304), (4088, 68516), (4894, 57232), (7154, 39152), (8176, 34258), (9788, 28616), (14308, 19576), (16352, 17129)]