81864304000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{165049}}^1$

素因数の和:165109

約数の個数: 128

約数和(自身を含む): 210102048000

約数和(自身を除く): 128237744000

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, 992, 1000, 1240, 1550, 1600, 1984, 2000, 2480, 3100, 3200, 3875, 3968, 4000, 4960, 6200, 7750, 8000, 9920, 12400, 15500, 16000, 19840, 24800, 31000, 49600, 62000, 99200, 124000, 165049, 248000, 330098, 496000, 660196, 825245, 1320392, 1650490, 2640784, 3300980, 4126225, 5116519, 5281568, 6601960, 8252450, 10233038, 10563136, 13203920, 16504900, 20466076, 20631125, 21126272, 25582595, 26407840, 33009800, 40932152, 41262250, 51165190, 52815680, 66019600, 81864304, 82524500, 102330380, 105631360, 127912975, 132039200, 163728608, 165049000, 204660760, 255825950, 264078400, 327457216, 330098000, 409321520, 511651900, 528156800, 639564875, 654914432, 660196000, 818643040, 1023303800, 1279129750, 1320392000, 1637286080, 2046607600, 2558259500, 2640784000, 3274572160, 4093215200, 5116519000, 8186430400, 10233038000, 16372860800, 20466076000, 40932152000, 81864304000]

約数ペア:

[(1, 81864304000), (2, 40932152000), (4, 20466076000), (5, 16372860800), (8, 10233038000), (10, 8186430400), (16, 5116519000), (20, 4093215200), (25, 3274572160), (31, 2640784000), (32, 2558259500), (40, 2046607600), (50, 1637286080), (62, 1320392000), (64, 1279129750), (80, 1023303800), (100, 818643040), (124, 660196000), (125, 654914432), (128, 639564875), (155, 528156800), (160, 511651900), (200, 409321520), (248, 330098000), (250, 327457216), (310, 264078400), (320, 255825950), (400, 204660760), (496, 165049000), (500, 163728608), (620, 132039200), (640, 127912975), (775, 105631360), (800, 102330380), (992, 82524500), (1000, 81864304), (1240, 66019600), (1550, 52815680), (1600, 51165190), (1984, 41262250), (2000, 40932152), (2480, 33009800), (3100, 26407840), (3200, 25582595), (3875, 21126272), (3968, 20631125), (4000, 20466076), (4960, 16504900), (6200, 13203920), (7750, 10563136), (8000, 10233038), (9920, 8252450), (12400, 6601960), (15500, 5281568), (16000, 5116519), (19840, 4126225), (24800, 3300980), (31000, 2640784), (49600, 1650490), (62000, 1320392), (99200, 825245), (124000, 660196), (165049, 496000), (248000, 330098)]