720304000

素因数分解:

$2^7\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3463}}^1$

素因数の和:3505

約数の個数: 128

約数和(自身を含む): 1929170880

約数和(自身を除く): 1208866880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 640, 650, 800, 832, 1000, 1040, 1300, 1600, 1625, 1664, 2000, 2080, 2600, 3200, 3250, 3463, 4000, 4160, 5200, 6500, 6926, 8000, 8320, 10400, 13000, 13852, 16000, 17315, 20800, 26000, 27704, 34630, 41600, 45019, 52000, 55408, 69260, 86575, 90038, 104000, 110816, 138520, 173150, 180076, 208000, 221632, 225095, 277040, 346300, 360152, 432875, 443264, 450190, 554080, 692600, 720304, 865750, 900380, 1108160, 1125475, 1385200, 1440608, 1731500, 1800760, 2216320, 2250950, 2770400, 2881216, 3463000, 3601520, 4501900, 5540800, 5627375, 5762432, 6926000, 7203040, 9003800, 11081600, 11254750, 13852000, 14406080, 18007600, 22509500, 27704000, 28812160, 36015200, 45019000, 55408000, 72030400, 90038000, 144060800, 180076000, 360152000, 720304000]

約数ペア:

[(1, 720304000), (2, 360152000), (4, 180076000), (5, 144060800), (8, 90038000), (10, 72030400), (13, 55408000), (16, 45019000), (20, 36015200), (25, 28812160), (26, 27704000), (32, 22509500), (40, 18007600), (50, 14406080), (52, 13852000), (64, 11254750), (65, 11081600), (80, 9003800), (100, 7203040), (104, 6926000), (125, 5762432), (128, 5627375), (130, 5540800), (160, 4501900), (200, 3601520), (208, 3463000), (250, 2881216), (260, 2770400), (320, 2250950), (325, 2216320), (400, 1800760), (416, 1731500), (500, 1440608), (520, 1385200), (640, 1125475), (650, 1108160), (800, 900380), (832, 865750), (1000, 720304), (1040, 692600), (1300, 554080), (1600, 450190), (1625, 443264), (1664, 432875), (2000, 360152), (2080, 346300), (2600, 277040), (3200, 225095), (3250, 221632), (3463, 208000), (4000, 180076), (4160, 173150), (5200, 138520), (6500, 110816), (6926, 104000), (8000, 90038), (8320, 86575), (10400, 69260), (13000, 55408), (13852, 52000), (16000, 45019), (17315, 41600), (20800, 34630), (26000, 27704)]