19899488

素因数分解:

$2^5\times 7^5\times {\mathrm{37}}^1$

素因数の和:82

約数の個数: 72

約数和(自身を含む): 46941552

約数和(自身を除く): 27042064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 343, 392, 518, 592, 686, 784, 1036, 1184, 1372, 1568, 1813, 2072, 2401, 2744, 3626, 4144, 4802, 5488, 7252, 8288, 9604, 10976, 12691, 14504, 16807, 19208, 25382, 29008, 33614, 38416, 50764, 58016, 67228, 76832, 88837, 101528, 134456, 177674, 203056, 268912, 355348, 406112, 537824, 621859, 710696, 1243718, 1421392, 2487436, 2842784, 4974872, 9949744, 19899488]

約数ペア:

[(1, 19899488), (2, 9949744), (4, 4974872), (7, 2842784), (8, 2487436), (14, 1421392), (16, 1243718), (28, 710696), (32, 621859), (37, 537824), (49, 406112), (56, 355348), (74, 268912), (98, 203056), (112, 177674), (148, 134456), (196, 101528), (224, 88837), (259, 76832), (296, 67228), (343, 58016), (392, 50764), (518, 38416), (592, 33614), (686, 29008), (784, 25382), (1036, 19208), (1184, 16807), (1372, 14504), (1568, 12691), (1813, 10976), (2072, 9604), (2401, 8288), (2744, 7252), (3626, 5488), (4144, 4802)]