40321990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9227}}^1$

素因数の和:9276

約数の個数: 32

約数和(自身を含む): 79729920

約数和(自身を除く): 39407930

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 9227, 18454, 46135, 92270, 175313, 212221, 350626, 424442, 876565, 1061105, 1753130, 2122210, 4032199, 8064398, 20160995, 40321990]

約数ペア:

[(1, 40321990), (2, 20160995), (5, 8064398), (10, 4032199), (19, 2122210), (23, 1753130), (38, 1061105), (46, 876565), (95, 424442), (115, 350626), (190, 212221), (230, 175313), (437, 92270), (874, 46135), (2185, 18454), (4370, 9227)]