81210720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1901}}^1$

素因数の和:2008

約数の個数: 96

約数和(自身を含む): 258824160

約数和(自身を除く): 177613440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 89, 96, 120, 160, 178, 240, 267, 356, 445, 480, 534, 712, 890, 1068, 1335, 1424, 1780, 1901, 2136, 2670, 2848, 3560, 3802, 4272, 5340, 5703, 7120, 7604, 8544, 9505, 10680, 11406, 14240, 15208, 19010, 21360, 22812, 28515, 30416, 38020, 42720, 45624, 57030, 60832, 76040, 91248, 114060, 152080, 169189, 182496, 228120, 304160, 338378, 456240, 507567, 676756, 845945, 912480, 1015134, 1353512, 1691890, 2030268, 2537835, 2707024, 3383780, 4060536, 5075670, 5414048, 6767560, 8121072, 10151340, 13535120, 16242144, 20302680, 27070240, 40605360, 81210720]

約数ペア:

[(1, 81210720), (2, 40605360), (3, 27070240), (4, 20302680), (5, 16242144), (6, 13535120), (8, 10151340), (10, 8121072), (12, 6767560), (15, 5414048), (16, 5075670), (20, 4060536), (24, 3383780), (30, 2707024), (32, 2537835), (40, 2030268), (48, 1691890), (60, 1353512), (80, 1015134), (89, 912480), (96, 845945), (120, 676756), (160, 507567), (178, 456240), (240, 338378), (267, 304160), (356, 228120), (445, 182496), (480, 169189), (534, 152080), (712, 114060), (890, 91248), (1068, 76040), (1335, 60832), (1424, 57030), (1780, 45624), (1901, 42720), (2136, 38020), (2670, 30416), (2848, 28515), (3560, 22812), (3802, 21360), (4272, 19010), (5340, 15208), (5703, 14240), (7120, 11406), (7604, 10680), (8544, 9505)]