20676250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 80

約数和(自身を含む): 47234880

約数和(自身を除く): 26558630

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 50, 70, 85, 119, 125, 139, 170, 175, 238, 250, 278, 350, 425, 595, 625, 695, 850, 875, 973, 1190, 1250, 1390, 1750, 1946, 2125, 2363, 2975, 3475, 4250, 4375, 4726, 4865, 5950, 6950, 8750, 9730, 10625, 11815, 14875, 16541, 17375, 21250, 23630, 24325, 29750, 33082, 34750, 48650, 59075, 74375, 82705, 86875, 118150, 121625, 148750, 165410, 173750, 243250, 295375, 413525, 590750, 608125, 827050, 1216250, 1476875, 2067625, 2953750, 4135250, 10338125, 20676250]

約数ペア:

[(1, 20676250), (2, 10338125), (5, 4135250), (7, 2953750), (10, 2067625), (14, 1476875), (17, 1216250), (25, 827050), (34, 608125), (35, 590750), (50, 413525), (70, 295375), (85, 243250), (119, 173750), (125, 165410), (139, 148750), (170, 121625), (175, 118150), (238, 86875), (250, 82705), (278, 74375), (350, 59075), (425, 48650), (595, 34750), (625, 33082), (695, 29750), (850, 24325), (875, 23630), (973, 21250), (1190, 17375), (1250, 16541), (1390, 14875), (1750, 11815), (1946, 10625), (2125, 9730), (2363, 8750), (2975, 6950), (3475, 5950), (4250, 4865), (4375, 4726)]