20645072

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1549}}^1$

素因数の和:1588

約数の個数: 60

約数和(自身を含む): 49299300

約数和(自身を除く): 28654228

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1549, 1666, 1904, 3098, 3332, 6196, 6664, 10843, 12392, 13328, 21686, 24784, 26333, 43372, 52666, 75901, 86744, 105332, 151802, 173488, 184331, 210664, 303604, 368662, 421328, 607208, 737324, 1214416, 1290317, 1474648, 2580634, 2949296, 5161268, 10322536, 20645072]

約数ペア:

[(1, 20645072), (2, 10322536), (4, 5161268), (7, 2949296), (8, 2580634), (14, 1474648), (16, 1290317), (17, 1214416), (28, 737324), (34, 607208), (49, 421328), (56, 368662), (68, 303604), (98, 210664), (112, 184331), (119, 173488), (136, 151802), (196, 105332), (238, 86744), (272, 75901), (392, 52666), (476, 43372), (784, 26333), (833, 24784), (952, 21686), (1549, 13328), (1666, 12392), (1904, 10843), (3098, 6664), (3332, 6196)]