987813760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49789}}^1$

素因数の和:49839

約数の個数: 64

約数和(自身を含む): 2437718400

約数和(自身を除く): 1449904640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 49789, 99578, 199156, 248945, 398312, 497890, 796624, 995780, 1543459, 1593248, 1991560, 3086918, 3186496, 3983120, 6173836, 6372992, 7717295, 7966240, 12347672, 15434590, 15932480, 24695344, 30869180, 31864960, 49390688, 61738360, 98781376, 123476720, 197562752, 246953440, 493906880, 987813760]

約数ペア:

[(1, 987813760), (2, 493906880), (4, 246953440), (5, 197562752), (8, 123476720), (10, 98781376), (16, 61738360), (20, 49390688), (31, 31864960), (32, 30869180), (40, 24695344), (62, 15932480), (64, 15434590), (80, 12347672), (124, 7966240), (128, 7717295), (155, 6372992), (160, 6173836), (248, 3983120), (310, 3186496), (320, 3086918), (496, 1991560), (620, 1593248), (640, 1543459), (992, 995780), (1240, 796624), (1984, 497890), (2480, 398312), (3968, 248945), (4960, 199156), (9920, 99578), (19840, 49789)]