128815980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{1663}}^1$

素因数の和:2966

約数の個数: 48

約数和(自身を含む): 361181184

約数和(自身を除く): 232365204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1291, 1663, 2582, 3326, 3873, 4989, 5164, 6455, 6652, 7746, 8315, 9978, 12910, 15492, 16630, 19365, 19956, 24945, 25820, 33260, 38730, 49890, 77460, 99780, 2146933, 4293866, 6440799, 8587732, 10734665, 12881598, 21469330, 25763196, 32203995, 42938660, 64407990, 128815980]

約数ペア:

[(1, 128815980), (2, 64407990), (3, 42938660), (4, 32203995), (5, 25763196), (6, 21469330), (10, 12881598), (12, 10734665), (15, 8587732), (20, 6440799), (30, 4293866), (60, 2146933), (1291, 99780), (1663, 77460), (2582, 49890), (3326, 38730), (3873, 33260), (4989, 25820), (5164, 24945), (6455, 19956), (6652, 19365), (7746, 16630), (8315, 15492), (9978, 12910)]