278857680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61153}}^1$

素因数の和:61188

約数の個数: 80

約数和(自身を含む): 909971520

約数和(自身を除く): 631113840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 61153, 122306, 183459, 244612, 305765, 366918, 489224, 611530, 733836, 917295, 978448, 1161907, 1223060, 1467672, 1834590, 2323814, 2446120, 2935344, 3485721, 3669180, 4647628, 4892240, 5809535, 6971442, 7338360, 9295256, 11619070, 13942884, 14676720, 17428605, 18590512, 23238140, 27885768, 34857210, 46476280, 55771536, 69714420, 92952560, 139428840, 278857680]

約数ペア:

[(1, 278857680), (2, 139428840), (3, 92952560), (4, 69714420), (5, 55771536), (6, 46476280), (8, 34857210), (10, 27885768), (12, 23238140), (15, 18590512), (16, 17428605), (19, 14676720), (20, 13942884), (24, 11619070), (30, 9295256), (38, 7338360), (40, 6971442), (48, 5809535), (57, 4892240), (60, 4647628), (76, 3669180), (80, 3485721), (95, 2935344), (114, 2446120), (120, 2323814), (152, 1834590), (190, 1467672), (228, 1223060), (240, 1161907), (285, 978448), (304, 917295), (380, 733836), (456, 611530), (570, 489224), (760, 366918), (912, 305765), (1140, 244612), (1520, 183459), (2280, 122306), (4560, 61153)]