80837820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64157}}^1$

素因数の和:64179

約数の個数: 72

約数和(自身を含む): 280242144

約数和(自身を除く): 199404324

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64157, 128314, 192471, 256628, 320785, 384942, 449099, 577413, 641570, 769884, 898198, 962355, 1154826, 1283140, 1347297, 1796396, 1924710, 2245495, 2309652, 2694594, 2887065, 3849420, 4041891, 4490990, 5389188, 5774130, 6736485, 8083782, 8981980, 11548260, 13472970, 16167564, 20209455, 26945940, 40418910, 80837820]

約数ペア:

[(1, 80837820), (2, 40418910), (3, 26945940), (4, 20209455), (5, 16167564), (6, 13472970), (7, 11548260), (9, 8981980), (10, 8083782), (12, 6736485), (14, 5774130), (15, 5389188), (18, 4490990), (20, 4041891), (21, 3849420), (28, 2887065), (30, 2694594), (35, 2309652), (36, 2245495), (42, 1924710), (45, 1796396), (60, 1347297), (63, 1283140), (70, 1154826), (84, 962355), (90, 898198), (105, 769884), (126, 641570), (140, 577413), (180, 449099), (210, 384942), (252, 320785), (315, 256628), (420, 192471), (630, 128314), (1260, 64157)]