20094975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 38584832

約数和(自身を除く): 18489857

約数列:

[1, 3, 5, 9, 15, 25, 31, 43, 45, 67, 75, 93, 129, 155, 201, 215, 225, 279, 335, 387, 465, 603, 645, 775, 1005, 1075, 1333, 1395, 1675, 1935, 2077, 2325, 2881, 3015, 3225, 3999, 5025, 6231, 6665, 6975, 8643, 9675, 10385, 11997, 14405, 15075, 18693, 19995, 25929, 31155, 33325, 43215, 51925, 59985, 72025, 89311, 93465, 99975, 129645, 155775, 216075, 267933, 299925, 446555, 467325, 648225, 803799, 1339665, 2232775, 4018995, 6698325, 20094975]

約数ペア:

[(1, 20094975), (3, 6698325), (5, 4018995), (9, 2232775), (15, 1339665), (25, 803799), (31, 648225), (43, 467325), (45, 446555), (67, 299925), (75, 267933), (93, 216075), (129, 155775), (155, 129645), (201, 99975), (215, 93465), (225, 89311), (279, 72025), (335, 59985), (387, 51925), (465, 43215), (603, 33325), (645, 31155), (775, 25929), (1005, 19995), (1075, 18693), (1333, 15075), (1395, 14405), (1675, 11997), (1935, 10385), (2077, 9675), (2325, 8643), (2881, 6975), (3015, 6665), (3225, 6231), (3999, 5025)]