1996400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 5904384

約数和(自身を除く): 3907984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 31, 35, 40, 46, 50, 56, 62, 70, 80, 92, 100, 112, 115, 124, 140, 155, 161, 175, 184, 200, 217, 230, 248, 280, 310, 322, 350, 368, 400, 434, 460, 496, 560, 575, 620, 644, 700, 713, 775, 805, 868, 920, 1085, 1150, 1240, 1288, 1400, 1426, 1550, 1610, 1736, 1840, 2170, 2300, 2480, 2576, 2800, 2852, 3100, 3220, 3472, 3565, 4025, 4340, 4600, 4991, 5425, 5704, 6200, 6440, 7130, 8050, 8680, 9200, 9982, 10850, 11408, 12400, 12880, 14260, 16100, 17360, 17825, 19964, 21700, 24955, 28520, 32200, 35650, 39928, 43400, 49910, 57040, 64400, 71300, 79856, 86800, 99820, 124775, 142600, 199640, 249550, 285200, 399280, 499100, 998200, 1996400]

約数ペア:

[(1, 1996400), (2, 998200), (4, 499100), (5, 399280), (7, 285200), (8, 249550), (10, 199640), (14, 142600), (16, 124775), (20, 99820), (23, 86800), (25, 79856), (28, 71300), (31, 64400), (35, 57040), (40, 49910), (46, 43400), (50, 39928), (56, 35650), (62, 32200), (70, 28520), (80, 24955), (92, 21700), (100, 19964), (112, 17825), (115, 17360), (124, 16100), (140, 14260), (155, 12880), (161, 12400), (175, 11408), (184, 10850), (200, 9982), (217, 9200), (230, 8680), (248, 8050), (280, 7130), (310, 6440), (322, 6200), (350, 5704), (368, 5425), (400, 4991), (434, 4600), (460, 4340), (496, 4025), (560, 3565), (575, 3472), (620, 3220), (644, 3100), (700, 2852), (713, 2800), (775, 2576), (805, 2480), (868, 2300), (920, 2170), (1085, 1840), (1150, 1736), (1240, 1610), (1288, 1550), (1400, 1426)]