209169880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1789}}^1$

素因数の和:1916

約数の個数: 64

約数和(自身を含む): 489744000

約数和(自身を除く): 280574120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 79, 148, 158, 185, 296, 316, 370, 395, 632, 740, 790, 1480, 1580, 1789, 2923, 3160, 3578, 5846, 7156, 8945, 11692, 14312, 14615, 17890, 23384, 29230, 35780, 58460, 66193, 71560, 116920, 132386, 141331, 264772, 282662, 330965, 529544, 565324, 661930, 706655, 1130648, 1323860, 1413310, 2647720, 2826620, 5229247, 5653240, 10458494, 20916988, 26146235, 41833976, 52292470, 104584940, 209169880]

約数ペア:

[(1, 209169880), (2, 104584940), (4, 52292470), (5, 41833976), (8, 26146235), (10, 20916988), (20, 10458494), (37, 5653240), (40, 5229247), (74, 2826620), (79, 2647720), (148, 1413310), (158, 1323860), (185, 1130648), (296, 706655), (316, 661930), (370, 565324), (395, 529544), (632, 330965), (740, 282662), (790, 264772), (1480, 141331), (1580, 132386), (1789, 116920), (2923, 71560), (3160, 66193), (3578, 58460), (5846, 35780), (7156, 29230), (8945, 23384), (11692, 17890), (14312, 14615)]