19089975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 33390720

約数和(自身を除く): 14300745

約数列:

[1, 3, 5, 15, 25, 29, 67, 75, 87, 131, 145, 201, 335, 393, 435, 655, 725, 1005, 1675, 1943, 1965, 2175, 3275, 3799, 5025, 5829, 8777, 9715, 9825, 11397, 18995, 26331, 29145, 43885, 48575, 56985, 94975, 131655, 145725, 219425, 254533, 284925, 658275, 763599, 1272665, 3817995, 6363325, 19089975]

約数ペア:

[(1, 19089975), (3, 6363325), (5, 3817995), (15, 1272665), (25, 763599), (29, 658275), (67, 284925), (75, 254533), (87, 219425), (131, 145725), (145, 131655), (201, 94975), (335, 56985), (393, 48575), (435, 43885), (655, 29145), (725, 26331), (1005, 18995), (1675, 11397), (1943, 9825), (1965, 9715), (2175, 8777), (3275, 5829), (3799, 5025)]