400221936

素因数分解:

$2^4\times 3^2\times {\mathrm{137}}^1\times {\mathrm{20287}}^1$

素因数の和:20438

約数の個数: 60

約数和(自身を含む): 1128296832

約数和(自身を除く): 728074896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 137, 144, 274, 411, 548, 822, 1096, 1233, 1644, 2192, 2466, 3288, 4932, 6576, 9864, 19728, 20287, 40574, 60861, 81148, 121722, 162296, 182583, 243444, 324592, 365166, 486888, 730332, 973776, 1460664, 2779319, 2921328, 5558638, 8337957, 11117276, 16675914, 22234552, 25013871, 33351828, 44469104, 50027742, 66703656, 100055484, 133407312, 200110968, 400221936]

約数ペア:

[(1, 400221936), (2, 200110968), (3, 133407312), (4, 100055484), (6, 66703656), (8, 50027742), (9, 44469104), (12, 33351828), (16, 25013871), (18, 22234552), (24, 16675914), (36, 11117276), (48, 8337957), (72, 5558638), (137, 2921328), (144, 2779319), (274, 1460664), (411, 973776), (548, 730332), (822, 486888), (1096, 365166), (1233, 324592), (1644, 243444), (2192, 182583), (2466, 162296), (3288, 121722), (4932, 81148), (6576, 60861), (9864, 40574), (19728, 20287)]