81831720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681931}}^1$

素因数の和:681945

約数の個数: 32

約数和(自身を含む): 245495520

約数和(自身を除く): 163663800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681931, 1363862, 2045793, 2727724, 3409655, 4091586, 5455448, 6819310, 8183172, 10228965, 13638620, 16366344, 20457930, 27277240, 40915860, 81831720]

約数ペア:

[(1, 81831720), (2, 40915860), (3, 27277240), (4, 20457930), (5, 16366344), (6, 13638620), (8, 10228965), (10, 8183172), (12, 6819310), (15, 5455448), (20, 4091586), (24, 3409655), (30, 2727724), (40, 2045793), (60, 1363862), (120, 681931)]