51601720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1652

約数の個数: 64

約数和(自身を含む): 125136000

約数和(自身を除く): 73534280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1579, 1634, 1720, 3158, 3268, 4085, 6316, 6536, 7895, 8170, 12632, 15790, 16340, 30001, 31580, 32680, 60002, 63160, 67897, 120004, 135794, 150005, 240008, 271588, 300010, 339485, 543176, 600020, 678970, 1200040, 1290043, 1357940, 2580086, 2715880, 5160172, 6450215, 10320344, 12900430, 25800860, 51601720]

約数ペア:

[(1, 51601720), (2, 25800860), (4, 12900430), (5, 10320344), (8, 6450215), (10, 5160172), (19, 2715880), (20, 2580086), (38, 1357940), (40, 1290043), (43, 1200040), (76, 678970), (86, 600020), (95, 543176), (152, 339485), (172, 300010), (190, 271588), (215, 240008), (344, 150005), (380, 135794), (430, 120004), (760, 67897), (817, 63160), (860, 60002), (1579, 32680), (1634, 31580), (1720, 30001), (3158, 16340), (3268, 15790), (4085, 12632), (6316, 8170), (6536, 7895)]