30831720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{256931}}^1$

素因数の和:256945

約数の個数: 32

約数和(自身を含む): 92495520

約数和(自身を除く): 61663800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 256931, 513862, 770793, 1027724, 1284655, 1541586, 2055448, 2569310, 3083172, 3853965, 5138620, 6166344, 7707930, 10277240, 15415860, 30831720]

約数ペア:

[(1, 30831720), (2, 15415860), (3, 10277240), (4, 7707930), (5, 6166344), (6, 5138620), (8, 3853965), (10, 3083172), (12, 2569310), (15, 2055448), (20, 1541586), (24, 1284655), (30, 1027724), (40, 770793), (60, 513862), (120, 256931)]