18467900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 44413824

約数和(自身を除く): 25945924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 103, 110, 163, 206, 220, 275, 326, 412, 515, 550, 652, 815, 1030, 1100, 1133, 1630, 1793, 2060, 2266, 2575, 3260, 3586, 4075, 4532, 5150, 5665, 7172, 8150, 8965, 10300, 11330, 16300, 16789, 17930, 22660, 28325, 33578, 35860, 44825, 56650, 67156, 83945, 89650, 113300, 167890, 179300, 184679, 335780, 369358, 419725, 738716, 839450, 923395, 1678900, 1846790, 3693580, 4616975, 9233950, 18467900]

約数ペア:

[(1, 18467900), (2, 9233950), (4, 4616975), (5, 3693580), (10, 1846790), (11, 1678900), (20, 923395), (22, 839450), (25, 738716), (44, 419725), (50, 369358), (55, 335780), (100, 184679), (103, 179300), (110, 167890), (163, 113300), (206, 89650), (220, 83945), (275, 67156), (326, 56650), (412, 44825), (515, 35860), (550, 33578), (652, 28325), (815, 22660), (1030, 17930), (1100, 16789), (1133, 16300), (1630, 11330), (1793, 10300), (2060, 8965), (2266, 8150), (2575, 7172), (3260, 5665), (3586, 5150), (4075, 4532)]