394520240

素因数分解:

$2^4\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{3917}}^1$

素因数の和:5189

約数の個数: 40

約数和(自身を含む): 918222480

約数和(自身を除く): 523702240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1259, 2518, 3917, 5036, 6295, 7834, 10072, 12590, 15668, 19585, 20144, 25180, 31336, 39170, 50360, 62672, 78340, 100720, 156680, 313360, 4931503, 9863006, 19726012, 24657515, 39452024, 49315030, 78904048, 98630060, 197260120, 394520240]

約数ペア:

[(1, 394520240), (2, 197260120), (4, 98630060), (5, 78904048), (8, 49315030), (10, 39452024), (16, 24657515), (20, 19726012), (40, 9863006), (80, 4931503), (1259, 313360), (2518, 156680), (3917, 100720), (5036, 78340), (6295, 62672), (7834, 50360), (10072, 39170), (12590, 31336), (15668, 25180), (19585, 20144)]