19946500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 51367680

約数和(自身を除く): 31421180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 125, 139, 140, 164, 175, 205, 250, 278, 287, 350, 410, 500, 556, 574, 695, 700, 820, 875, 973, 1025, 1148, 1390, 1435, 1750, 1946, 2050, 2780, 2870, 3475, 3500, 3892, 4100, 4865, 5125, 5699, 5740, 6950, 7175, 9730, 10250, 11398, 13900, 14350, 17375, 19460, 20500, 22796, 24325, 28495, 28700, 34750, 35875, 39893, 48650, 56990, 69500, 71750, 79786, 97300, 113980, 121625, 142475, 143500, 159572, 199465, 243250, 284950, 398930, 486500, 569900, 712375, 797860, 997325, 1424750, 1994650, 2849500, 3989300, 4986625, 9973250, 19946500]

約数ペア:

[(1, 19946500), (2, 9973250), (4, 4986625), (5, 3989300), (7, 2849500), (10, 1994650), (14, 1424750), (20, 997325), (25, 797860), (28, 712375), (35, 569900), (41, 486500), (50, 398930), (70, 284950), (82, 243250), (100, 199465), (125, 159572), (139, 143500), (140, 142475), (164, 121625), (175, 113980), (205, 97300), (250, 79786), (278, 71750), (287, 69500), (350, 56990), (410, 48650), (500, 39893), (556, 35875), (574, 34750), (695, 28700), (700, 28495), (820, 24325), (875, 22796), (973, 20500), (1025, 19460), (1148, 17375), (1390, 14350), (1435, 13900), (1750, 11398), (1946, 10250), (2050, 9730), (2780, 7175), (2870, 6950), (3475, 5740), (3500, 5699), (3892, 5125), (4100, 4865)]