42210020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{983}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 94227840

約数和(自身を除く): 52017820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 452, 565, 983, 1130, 1966, 2147, 2260, 3932, 4294, 4915, 8588, 9830, 10735, 18677, 19660, 21470, 37354, 42940, 74708, 93385, 111079, 186770, 222158, 373540, 444316, 555395, 1110790, 2110501, 2221580, 4221002, 8442004, 10552505, 21105010, 42210020]

約数ペア:

[(1, 42210020), (2, 21105010), (4, 10552505), (5, 8442004), (10, 4221002), (19, 2221580), (20, 2110501), (38, 1110790), (76, 555395), (95, 444316), (113, 373540), (190, 222158), (226, 186770), (380, 111079), (452, 93385), (565, 74708), (983, 42940), (1130, 37354), (1966, 21470), (2147, 19660), (2260, 18677), (3932, 10735), (4294, 9830), (4915, 8588)]