20369128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 44770320

約数和(自身を除く): 24401192

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 41, 52, 68, 82, 104, 136, 164, 221, 281, 328, 442, 533, 562, 697, 884, 1066, 1124, 1394, 1768, 2132, 2248, 2788, 3653, 4264, 4777, 5576, 7306, 9061, 9554, 11521, 14612, 18122, 19108, 23042, 29224, 36244, 38216, 46084, 62101, 72488, 92168, 124202, 149773, 195857, 248404, 299546, 391714, 496808, 599092, 783428, 1198184, 1566856, 2546141, 5092282, 10184564, 20369128]

約数ペア:

[(1, 20369128), (2, 10184564), (4, 5092282), (8, 2546141), (13, 1566856), (17, 1198184), (26, 783428), (34, 599092), (41, 496808), (52, 391714), (68, 299546), (82, 248404), (104, 195857), (136, 149773), (164, 124202), (221, 92168), (281, 72488), (328, 62101), (442, 46084), (533, 38216), (562, 36244), (697, 29224), (884, 23042), (1066, 19108), (1124, 18122), (1394, 14612), (1768, 11521), (2132, 9554), (2248, 9061), (2788, 7306), (3653, 5576), (4264, 4777)]