19398750

素因数分解:

$2^1\times 3^1\times 5^4\times 7^1\times {\mathrm{739}}^1$

素因数の和:771

約数の個数: 80

約数和(自身を含む): 55482240

約数和(自身を除く): 36083490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 625, 739, 750, 875, 1050, 1250, 1478, 1750, 1875, 2217, 2625, 3695, 3750, 4375, 4434, 5173, 5250, 7390, 8750, 10346, 11085, 13125, 15519, 18475, 22170, 25865, 26250, 31038, 36950, 51730, 55425, 77595, 92375, 110850, 129325, 155190, 184750, 258650, 277125, 387975, 461875, 554250, 646625, 775950, 923750, 1293250, 1385625, 1939875, 2771250, 3233125, 3879750, 6466250, 9699375, 19398750]

約数ペア:

[(1, 19398750), (2, 9699375), (3, 6466250), (5, 3879750), (6, 3233125), (7, 2771250), (10, 1939875), (14, 1385625), (15, 1293250), (21, 923750), (25, 775950), (30, 646625), (35, 554250), (42, 461875), (50, 387975), (70, 277125), (75, 258650), (105, 184750), (125, 155190), (150, 129325), (175, 110850), (210, 92375), (250, 77595), (350, 55425), (375, 51730), (525, 36950), (625, 31038), (739, 26250), (750, 25865), (875, 22170), (1050, 18475), (1250, 15519), (1478, 13125), (1750, 11085), (1875, 10346), (2217, 8750), (2625, 7390), (3695, 5250), (3750, 5173), (4375, 4434)]