18529380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 56556864

約数和(自身を除く): 38027484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 331, 622, 662, 933, 993, 1244, 1324, 1555, 1655, 1866, 1986, 2799, 2979, 3110, 3310, 3732, 3972, 4665, 4965, 5598, 5958, 6220, 6620, 9330, 9930, 11196, 11916, 13995, 14895, 18660, 19860, 27990, 29790, 55980, 59580, 102941, 205882, 308823, 411764, 514705, 617646, 926469, 1029410, 1235292, 1544115, 1852938, 2058820, 3088230, 3705876, 4632345, 6176460, 9264690, 18529380]

約数ペア:

[(1, 18529380), (2, 9264690), (3, 6176460), (4, 4632345), (5, 3705876), (6, 3088230), (9, 2058820), (10, 1852938), (12, 1544115), (15, 1235292), (18, 1029410), (20, 926469), (30, 617646), (36, 514705), (45, 411764), (60, 308823), (90, 205882), (180, 102941), (311, 59580), (331, 55980), (622, 29790), (662, 27990), (933, 19860), (993, 18660), (1244, 14895), (1324, 13995), (1555, 11916), (1655, 11196), (1866, 9930), (1986, 9330), (2799, 6620), (2979, 6220), (3110, 5958), (3310, 5598), (3732, 4965), (3972, 4665)]