408208000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:883

約数の個数: 128

約数和(自身を含む): 1048919040

約数和(自身を除く): 640711040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 310, 320, 400, 496, 500, 620, 640, 775, 800, 823, 992, 1000, 1240, 1550, 1600, 1646, 1984, 2000, 2480, 3100, 3200, 3292, 3875, 3968, 4000, 4115, 4960, 6200, 6584, 7750, 8000, 8230, 9920, 12400, 13168, 15500, 16000, 16460, 19840, 20575, 24800, 25513, 26336, 31000, 32920, 41150, 49600, 51026, 52672, 62000, 65840, 82300, 99200, 102052, 102875, 105344, 124000, 127565, 131680, 164600, 204104, 205750, 248000, 255130, 263360, 329200, 408208, 411500, 496000, 510260, 526720, 637825, 658400, 816416, 823000, 1020520, 1275650, 1316800, 1632832, 1646000, 2041040, 2551300, 2633600, 3189125, 3265664, 3292000, 4082080, 5102600, 6378250, 6584000, 8164160, 10205200, 12756500, 13168000, 16328320, 20410400, 25513000, 40820800, 51026000, 81641600, 102052000, 204104000, 408208000]

約数ペア:

[(1, 408208000), (2, 204104000), (4, 102052000), (5, 81641600), (8, 51026000), (10, 40820800), (16, 25513000), (20, 20410400), (25, 16328320), (31, 13168000), (32, 12756500), (40, 10205200), (50, 8164160), (62, 6584000), (64, 6378250), (80, 5102600), (100, 4082080), (124, 3292000), (125, 3265664), (128, 3189125), (155, 2633600), (160, 2551300), (200, 2041040), (248, 1646000), (250, 1632832), (310, 1316800), (320, 1275650), (400, 1020520), (496, 823000), (500, 816416), (620, 658400), (640, 637825), (775, 526720), (800, 510260), (823, 496000), (992, 411500), (1000, 408208), (1240, 329200), (1550, 263360), (1600, 255130), (1646, 248000), (1984, 205750), (2000, 204104), (2480, 164600), (3100, 131680), (3200, 127565), (3292, 124000), (3875, 105344), (3968, 102875), (4000, 102052), (4115, 99200), (4960, 82300), (6200, 65840), (6584, 62000), (7750, 52672), (8000, 51026), (8230, 49600), (9920, 41150), (12400, 32920), (13168, 31000), (15500, 26336), (16000, 25513), (16460, 24800), (19840, 20575)]