20097040

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1097}}^1$

素因数の和:1339

約数の個数: 40

約数和(自身を含む): 46972440

約数和(自身を除く): 26875400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1097, 1145, 1832, 2194, 2290, 3664, 4388, 4580, 5485, 8776, 9160, 10970, 17552, 18320, 21940, 43880, 87760, 251213, 502426, 1004852, 1256065, 2009704, 2512130, 4019408, 5024260, 10048520, 20097040]

約数ペア:

[(1, 20097040), (2, 10048520), (4, 5024260), (5, 4019408), (8, 2512130), (10, 2009704), (16, 1256065), (20, 1004852), (40, 502426), (80, 251213), (229, 87760), (458, 43880), (916, 21940), (1097, 18320), (1145, 17552), (1832, 10970), (2194, 9160), (2290, 8776), (3664, 5485), (4388, 4580)]