400471920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{556211}}^1$

素因数の和:556230

約数の個数: 60

約数和(自身を含む): 1344920616

約数和(自身を除く): 944448696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 556211, 1112422, 1668633, 2224844, 2781055, 3337266, 4449688, 5005899, 5562110, 6674532, 8343165, 8899376, 10011798, 11124220, 13349064, 16686330, 20023596, 22248440, 25029495, 26698128, 33372660, 40047192, 44496880, 50058990, 66745320, 80094384, 100117980, 133490640, 200235960, 400471920]

約数ペア:

[(1, 400471920), (2, 200235960), (3, 133490640), (4, 100117980), (5, 80094384), (6, 66745320), (8, 50058990), (9, 44496880), (10, 40047192), (12, 33372660), (15, 26698128), (16, 25029495), (18, 22248440), (20, 20023596), (24, 16686330), (30, 13349064), (36, 11124220), (40, 10011798), (45, 8899376), (48, 8343165), (60, 6674532), (72, 5562110), (80, 5005899), (90, 4449688), (120, 3337266), (144, 2781055), (180, 2224844), (240, 1668633), (360, 1112422), (720, 556211)]