28721000800

素因数分解:

$2^5\times 5^2\times {\mathrm{547}}^1\times {\mathrm{65633}}^1$

素因数の和:66200

約数の個数: 72

約数和(自身を含む): 70244394696

約数和(自身を除く): 41523393896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 547, 800, 1094, 2188, 2735, 4376, 5470, 8752, 10940, 13675, 17504, 21880, 27350, 43760, 54700, 65633, 87520, 109400, 131266, 218800, 262532, 328165, 437600, 525064, 656330, 1050128, 1312660, 1640825, 2100256, 2625320, 3281650, 5250640, 6563300, 10501280, 13126600, 26253200, 35901251, 52506400, 71802502, 143605004, 179506255, 287210008, 359012510, 574420016, 718025020, 897531275, 1148840032, 1436050040, 1795062550, 2872100080, 3590125100, 5744200160, 7180250200, 14360500400, 28721000800]

約数ペア:

[(1, 28721000800), (2, 14360500400), (4, 7180250200), (5, 5744200160), (8, 3590125100), (10, 2872100080), (16, 1795062550), (20, 1436050040), (25, 1148840032), (32, 897531275), (40, 718025020), (50, 574420016), (80, 359012510), (100, 287210008), (160, 179506255), (200, 143605004), (400, 71802502), (547, 52506400), (800, 35901251), (1094, 26253200), (2188, 13126600), (2735, 10501280), (4376, 6563300), (5470, 5250640), (8752, 3281650), (10940, 2625320), (13675, 2100256), (17504, 1640825), (21880, 1312660), (27350, 1050128), (43760, 656330), (54700, 525064), (65633, 437600), (87520, 328165), (109400, 262532), (131266, 218800)]