201619480

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 462607200

約数和(自身を除く): 260987720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 131, 218, 262, 353, 436, 524, 545, 655, 706, 872, 1048, 1090, 1310, 1412, 1765, 2180, 2620, 2824, 3530, 4360, 5240, 7060, 14120, 14279, 28558, 38477, 46243, 57116, 71395, 76954, 92486, 114232, 142790, 153908, 184972, 192385, 231215, 285580, 307816, 369944, 384770, 462430, 571160, 769540, 924860, 1539080, 1849720, 5040487, 10080974, 20161948, 25202435, 40323896, 50404870, 100809740, 201619480]

約数ペア:

[(1, 201619480), (2, 100809740), (4, 50404870), (5, 40323896), (8, 25202435), (10, 20161948), (20, 10080974), (40, 5040487), (109, 1849720), (131, 1539080), (218, 924860), (262, 769540), (353, 571160), (436, 462430), (524, 384770), (545, 369944), (655, 307816), (706, 285580), (872, 231215), (1048, 192385), (1090, 184972), (1310, 153908), (1412, 142790), (1765, 114232), (2180, 92486), (2620, 76954), (2824, 71395), (3530, 57116), (4360, 46243), (5240, 38477), (7060, 28558), (14120, 14279)]