2018654980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{5171}}^1$

素因数の和:5460

約数の個数: 48

約数和(自身を含む): 4301035200

約数和(自身を除く): 2282380220

約数列:

[1, 2, 4, 5, 10, 20, 131, 149, 262, 298, 524, 596, 655, 745, 1310, 1490, 2620, 2980, 5171, 10342, 19519, 20684, 25855, 39038, 51710, 78076, 97595, 103420, 195190, 390380, 677401, 770479, 1354802, 1540958, 2709604, 3081916, 3387005, 3852395, 6774010, 7704790, 13548020, 15409580, 100932749, 201865498, 403730996, 504663745, 1009327490, 2018654980]

約数ペア:

[(1, 2018654980), (2, 1009327490), (4, 504663745), (5, 403730996), (10, 201865498), (20, 100932749), (131, 15409580), (149, 13548020), (262, 7704790), (298, 6774010), (524, 3852395), (596, 3387005), (655, 3081916), (745, 2709604), (1310, 1540958), (1490, 1354802), (2620, 770479), (2980, 677401), (5171, 390380), (10342, 195190), (19519, 103420), (20684, 97595), (25855, 78076), (39038, 51710)]