201600040

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 462672000

約数和(自身を除く): 261071960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 139, 202, 278, 359, 404, 505, 556, 695, 718, 808, 1010, 1112, 1390, 1436, 1795, 2020, 2780, 2872, 3590, 4040, 5560, 7180, 14039, 14360, 28078, 36259, 49901, 56156, 70195, 72518, 99802, 112312, 140390, 145036, 181295, 199604, 249505, 280780, 290072, 362590, 399208, 499010, 561560, 725180, 998020, 1450360, 1996040, 5040001, 10080002, 20160004, 25200005, 40320008, 50400010, 100800020, 201600040]

約数ペア:

[(1, 201600040), (2, 100800020), (4, 50400010), (5, 40320008), (8, 25200005), (10, 20160004), (20, 10080002), (40, 5040001), (101, 1996040), (139, 1450360), (202, 998020), (278, 725180), (359, 561560), (404, 499010), (505, 399208), (556, 362590), (695, 290072), (718, 280780), (808, 249505), (1010, 199604), (1112, 181295), (1390, 145036), (1436, 140390), (1795, 112312), (2020, 99802), (2780, 72518), (2872, 70195), (3590, 56156), (4040, 49901), (5560, 36259), (7180, 28078), (14039, 14360)]