18529720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1831}}^1$

素因数の和:1876

約数の個数: 64

約数和(自身を含む): 47485440

約数和(自身を除く): 28955720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 1831, 2024, 2530, 3662, 5060, 7324, 9155, 10120, 14648, 18310, 20141, 36620, 40282, 42113, 73240, 80564, 84226, 100705, 161128, 168452, 201410, 210565, 336904, 402820, 421130, 463243, 805640, 842260, 926486, 1684520, 1852972, 2316215, 3705944, 4632430, 9264860, 18529720]

約数ペア:

[(1, 18529720), (2, 9264860), (4, 4632430), (5, 3705944), (8, 2316215), (10, 1852972), (11, 1684520), (20, 926486), (22, 842260), (23, 805640), (40, 463243), (44, 421130), (46, 402820), (55, 336904), (88, 210565), (92, 201410), (110, 168452), (115, 161128), (184, 100705), (220, 84226), (230, 80564), (253, 73240), (440, 42113), (460, 40282), (506, 36620), (920, 20141), (1012, 18310), (1265, 14648), (1831, 10120), (2024, 9155), (2530, 7324), (3662, 5060)]