2080375040

素因数分解:

$2^8\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4657}}^1$

素因数の和:5027

約数の個数: 72

約数和(自身を含む): 4998499800

約数和(自身を除く): 2918124760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 349, 640, 698, 1280, 1396, 1745, 2792, 3490, 4657, 5584, 6980, 9314, 11168, 13960, 18628, 22336, 23285, 27920, 37256, 44672, 46570, 55840, 74512, 89344, 93140, 111680, 149024, 186280, 223360, 298048, 372560, 446720, 596096, 745120, 1192192, 1490240, 1625293, 2980480, 3250586, 5960960, 6501172, 8126465, 13002344, 16252930, 26004688, 32505860, 52009376, 65011720, 104018752, 130023440, 208037504, 260046880, 416075008, 520093760, 1040187520, 2080375040]

約数ペア:

[(1, 2080375040), (2, 1040187520), (4, 520093760), (5, 416075008), (8, 260046880), (10, 208037504), (16, 130023440), (20, 104018752), (32, 65011720), (40, 52009376), (64, 32505860), (80, 26004688), (128, 16252930), (160, 13002344), (256, 8126465), (320, 6501172), (349, 5960960), (640, 3250586), (698, 2980480), (1280, 1625293), (1396, 1490240), (1745, 1192192), (2792, 745120), (3490, 596096), (4657, 446720), (5584, 372560), (6980, 298048), (9314, 223360), (11168, 186280), (13960, 149024), (18628, 111680), (22336, 93140), (23285, 89344), (27920, 74512), (37256, 55840), (44672, 46570)]