78656000

素因数分解:

$2^9\times 5^3\times {\mathrm{1229}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 196293240

約数和(自身を除く): 117637240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1229, 1280, 1600, 2000, 2458, 2560, 3200, 4000, 4916, 6145, 6400, 8000, 9832, 12290, 12800, 16000, 19664, 24580, 30725, 32000, 39328, 49160, 61450, 64000, 78656, 98320, 122900, 153625, 157312, 196640, 245800, 307250, 314624, 393280, 491600, 614500, 629248, 786560, 983200, 1229000, 1573120, 1966400, 2458000, 3146240, 3932800, 4916000, 7865600, 9832000, 15731200, 19664000, 39328000, 78656000]

約数ペア:

[(1, 78656000), (2, 39328000), (4, 19664000), (5, 15731200), (8, 9832000), (10, 7865600), (16, 4916000), (20, 3932800), (25, 3146240), (32, 2458000), (40, 1966400), (50, 1573120), (64, 1229000), (80, 983200), (100, 786560), (125, 629248), (128, 614500), (160, 491600), (200, 393280), (250, 314624), (256, 307250), (320, 245800), (400, 196640), (500, 157312), (512, 153625), (640, 122900), (800, 98320), (1000, 78656), (1229, 64000), (1280, 61450), (1600, 49160), (2000, 39328), (2458, 32000), (2560, 30725), (3200, 24580), (4000, 19664), (4916, 16000), (6145, 12800), (6400, 12290), (8000, 9832)]