220180725

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 415663872

約数和(自身を除く): 195483147

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 157, 207, 225, 271, 345, 471, 575, 785, 813, 1035, 1355, 1413, 1725, 2355, 2439, 3611, 3925, 4065, 5175, 6233, 6775, 7065, 10833, 11775, 12195, 18055, 18699, 20325, 31165, 32499, 35325, 42547, 54165, 56097, 60975, 90275, 93495, 127641, 155825, 162495, 212735, 270825, 280485, 382923, 467475, 638205, 812475, 978581, 1063675, 1402425, 1914615, 2935743, 3191025, 4892905, 8807229, 9573075, 14678715, 24464525, 44036145, 73393575, 220180725]

約数ペア:

[(1, 220180725), (3, 73393575), (5, 44036145), (9, 24464525), (15, 14678715), (23, 9573075), (25, 8807229), (45, 4892905), (69, 3191025), (75, 2935743), (115, 1914615), (157, 1402425), (207, 1063675), (225, 978581), (271, 812475), (345, 638205), (471, 467475), (575, 382923), (785, 280485), (813, 270825), (1035, 212735), (1355, 162495), (1413, 155825), (1725, 127641), (2355, 93495), (2439, 90275), (3611, 60975), (3925, 56097), (4065, 54165), (5175, 42547), (6233, 35325), (6775, 32499), (7065, 31165), (10833, 20325), (11775, 18699), (12195, 18055)]