1280840160

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{140443}}^1$

素因数の和:140480

約数の個数: 96

約数和(自身を含む): 4247026560

約数和(自身を除く): 2966186400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 380, 456, 480, 570, 608, 760, 912, 1140, 1520, 1824, 2280, 3040, 4560, 9120, 140443, 280886, 421329, 561772, 702215, 842658, 1123544, 1404430, 1685316, 2106645, 2247088, 2668417, 2808860, 3370632, 4213290, 4494176, 5336834, 5617720, 6741264, 8005251, 8426580, 10673668, 11235440, 13342085, 13482528, 16010502, 16853160, 21347336, 22470880, 26684170, 32021004, 33706320, 40026255, 42694672, 53368340, 64042008, 67412640, 80052510, 85389344, 106736680, 128084016, 160105020, 213473360, 256168032, 320210040, 426946720, 640420080, 1280840160]

約数ペア:

[(1, 1280840160), (2, 640420080), (3, 426946720), (4, 320210040), (5, 256168032), (6, 213473360), (8, 160105020), (10, 128084016), (12, 106736680), (15, 85389344), (16, 80052510), (19, 67412640), (20, 64042008), (24, 53368340), (30, 42694672), (32, 40026255), (38, 33706320), (40, 32021004), (48, 26684170), (57, 22470880), (60, 21347336), (76, 16853160), (80, 16010502), (95, 13482528), (96, 13342085), (114, 11235440), (120, 10673668), (152, 8426580), (160, 8005251), (190, 6741264), (228, 5617720), (240, 5336834), (285, 4494176), (304, 4213290), (380, 3370632), (456, 2808860), (480, 2668417), (570, 2247088), (608, 2106645), (760, 1685316), (912, 1404430), (1140, 1123544), (1520, 842658), (1824, 702215), (2280, 561772), (3040, 421329), (4560, 280886), (9120, 140443)]