401384080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1\times {\mathrm{307}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 955563840

約数和(自身を除く): 554179760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 277, 295, 307, 472, 554, 590, 614, 944, 1108, 1180, 1228, 1385, 1535, 2216, 2360, 2456, 2770, 3070, 4432, 4720, 4912, 5540, 6140, 11080, 12280, 16343, 18113, 22160, 24560, 32686, 36226, 65372, 72452, 81715, 85039, 90565, 130744, 144904, 163430, 170078, 181130, 261488, 289808, 326860, 340156, 362260, 425195, 653720, 680312, 724520, 850390, 1307440, 1360624, 1449040, 1700780, 3401560, 5017301, 6803120, 10034602, 20069204, 25086505, 40138408, 50173010, 80276816, 100346020, 200692040, 401384080]

約数ペア:

[(1, 401384080), (2, 200692040), (4, 100346020), (5, 80276816), (8, 50173010), (10, 40138408), (16, 25086505), (20, 20069204), (40, 10034602), (59, 6803120), (80, 5017301), (118, 3401560), (236, 1700780), (277, 1449040), (295, 1360624), (307, 1307440), (472, 850390), (554, 724520), (590, 680312), (614, 653720), (944, 425195), (1108, 362260), (1180, 340156), (1228, 326860), (1385, 289808), (1535, 261488), (2216, 181130), (2360, 170078), (2456, 163430), (2770, 144904), (3070, 130744), (4432, 90565), (4720, 85039), (4912, 81715), (5540, 72452), (6140, 65372), (11080, 36226), (12280, 32686), (16343, 24560), (18113, 22160)]