20197275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 42283008

約数和(自身を除く): 22085733

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 31, 35, 51, 73, 75, 85, 93, 105, 119, 155, 175, 217, 219, 255, 357, 365, 425, 465, 511, 525, 527, 595, 651, 775, 1085, 1095, 1241, 1275, 1533, 1581, 1785, 1825, 2263, 2325, 2555, 2635, 2975, 3255, 3689, 3723, 5425, 5475, 6205, 6789, 7665, 7905, 8687, 8925, 11067, 11315, 12775, 13175, 15841, 16275, 18445, 18615, 26061, 31025, 33945, 38325, 38471, 39525, 43435, 47523, 55335, 56575, 79205, 92225, 93075, 115413, 130305, 169725, 192355, 217175, 237615, 269297, 276675, 396025, 577065, 651525, 807891, 961775, 1188075, 1346485, 2885325, 4039455, 6732425, 20197275]

約数ペア:

[(1, 20197275), (3, 6732425), (5, 4039455), (7, 2885325), (15, 1346485), (17, 1188075), (21, 961775), (25, 807891), (31, 651525), (35, 577065), (51, 396025), (73, 276675), (75, 269297), (85, 237615), (93, 217175), (105, 192355), (119, 169725), (155, 130305), (175, 115413), (217, 93075), (219, 92225), (255, 79205), (357, 56575), (365, 55335), (425, 47523), (465, 43435), (511, 39525), (525, 38471), (527, 38325), (595, 33945), (651, 31025), (775, 26061), (1085, 18615), (1095, 18445), (1241, 16275), (1275, 15841), (1533, 13175), (1581, 12775), (1785, 11315), (1825, 11067), (2263, 8925), (2325, 8687), (2555, 7905), (2635, 7665), (2975, 6789), (3255, 6205), (3689, 5475), (3723, 5425)]