15999900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 55829760

約数和(自身を除く): 39829860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 30, 35, 38, 42, 50, 57, 60, 70, 75, 76, 84, 95, 100, 105, 114, 133, 140, 150, 175, 190, 210, 228, 266, 285, 300, 350, 380, 399, 401, 420, 475, 525, 532, 570, 665, 700, 798, 802, 950, 1050, 1140, 1203, 1330, 1425, 1596, 1604, 1900, 1995, 2005, 2100, 2406, 2660, 2807, 2850, 3325, 3990, 4010, 4812, 5614, 5700, 6015, 6650, 7619, 7980, 8020, 8421, 9975, 10025, 11228, 12030, 13300, 14035, 15238, 16842, 19950, 20050, 22857, 24060, 28070, 30075, 30476, 33684, 38095, 39900, 40100, 42105, 45714, 53333, 56140, 60150, 70175, 76190, 84210, 91428, 106666, 114285, 120300, 140350, 152380, 159999, 168420, 190475, 210525, 213332, 228570, 266665, 280700, 319998, 380950, 421050, 457140, 533330, 571425, 639996, 761900, 799995, 842100, 1066660, 1142850, 1333325, 1599990, 2285700, 2666650, 3199980, 3999975, 5333300, 7999950, 15999900]

約数ペア:

[(1, 15999900), (2, 7999950), (3, 5333300), (4, 3999975), (5, 3199980), (6, 2666650), (7, 2285700), (10, 1599990), (12, 1333325), (14, 1142850), (15, 1066660), (19, 842100), (20, 799995), (21, 761900), (25, 639996), (28, 571425), (30, 533330), (35, 457140), (38, 421050), (42, 380950), (50, 319998), (57, 280700), (60, 266665), (70, 228570), (75, 213332), (76, 210525), (84, 190475), (95, 168420), (100, 159999), (105, 152380), (114, 140350), (133, 120300), (140, 114285), (150, 106666), (175, 91428), (190, 84210), (210, 76190), (228, 70175), (266, 60150), (285, 56140), (300, 53333), (350, 45714), (380, 42105), (399, 40100), (401, 39900), (420, 38095), (475, 33684), (525, 30476), (532, 30075), (570, 28070), (665, 24060), (700, 22857), (798, 20050), (802, 19950), (950, 16842), (1050, 15238), (1140, 14035), (1203, 13300), (1330, 12030), (1425, 11228), (1596, 10025), (1604, 9975), (1900, 8421), (1995, 8020), (2005, 7980), (2100, 7619), (2406, 6650), (2660, 6015), (2807, 5700), (2850, 5614), (3325, 4812), (3990, 4010)]