19946550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 54559008

約数和(自身を除く): 34612458

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 53, 65, 75, 78, 106, 130, 150, 159, 193, 195, 265, 318, 325, 386, 390, 530, 579, 650, 689, 795, 965, 975, 1158, 1325, 1378, 1590, 1930, 1950, 2067, 2509, 2650, 2895, 3445, 3975, 4134, 4825, 5018, 5790, 6890, 7527, 7950, 9650, 10229, 10335, 12545, 14475, 15054, 17225, 20458, 20670, 25090, 28950, 30687, 34450, 37635, 51145, 51675, 61374, 62725, 75270, 102290, 103350, 125450, 132977, 153435, 188175, 255725, 265954, 306870, 376350, 398931, 511450, 664885, 767175, 797862, 1329770, 1534350, 1994655, 3324425, 3989310, 6648850, 9973275, 19946550]

約数ペア:

[(1, 19946550), (2, 9973275), (3, 6648850), (5, 3989310), (6, 3324425), (10, 1994655), (13, 1534350), (15, 1329770), (25, 797862), (26, 767175), (30, 664885), (39, 511450), (50, 398931), (53, 376350), (65, 306870), (75, 265954), (78, 255725), (106, 188175), (130, 153435), (150, 132977), (159, 125450), (193, 103350), (195, 102290), (265, 75270), (318, 62725), (325, 61374), (386, 51675), (390, 51145), (530, 37635), (579, 34450), (650, 30687), (689, 28950), (795, 25090), (965, 20670), (975, 20458), (1158, 17225), (1325, 15054), (1378, 14475), (1590, 12545), (1930, 10335), (1950, 10229), (2067, 9650), (2509, 7950), (2650, 7527), (2895, 6890), (3445, 5790), (3975, 5018), (4134, 4825)]