64894760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1021}}^1$

素因数の和:1266

約数の個数: 64

約数和(自身を含む): 167771520

約数和(自身を除く): 102876760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 454, 908, 1021, 1135, 1589, 1816, 2042, 2270, 3178, 4084, 4540, 5105, 6356, 7147, 7945, 8168, 9080, 10210, 12712, 14294, 15890, 20420, 28588, 31780, 35735, 40840, 57176, 63560, 71470, 142940, 231767, 285880, 463534, 927068, 1158835, 1622369, 1854136, 2317670, 3244738, 4635340, 6489476, 8111845, 9270680, 12978952, 16223690, 32447380, 64894760]

約数ペア:

[(1, 64894760), (2, 32447380), (4, 16223690), (5, 12978952), (7, 9270680), (8, 8111845), (10, 6489476), (14, 4635340), (20, 3244738), (28, 2317670), (35, 1854136), (40, 1622369), (56, 1158835), (70, 927068), (140, 463534), (227, 285880), (280, 231767), (454, 142940), (908, 71470), (1021, 63560), (1135, 57176), (1589, 40840), (1816, 35735), (2042, 31780), (2270, 28588), (3178, 20420), (4084, 15890), (4540, 14294), (5105, 12712), (6356, 10210), (7147, 9080), (7945, 8168)]