161696000

素因数分解:

$2^8\times 5^3\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 418349568

約数和(自身を除く): 256653568

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, 163, 200, 248, 250, 256, 310, 320, 326, 400, 496, 500, 620, 640, 652, 775, 800, 815, 992, 1000, 1240, 1280, 1304, 1550, 1600, 1630, 1984, 2000, 2480, 2608, 3100, 3200, 3260, 3875, 3968, 4000, 4075, 4960, 5053, 5216, 6200, 6400, 6520, 7750, 7936, 8000, 8150, 9920, 10106, 10432, 12400, 13040, 15500, 16000, 16300, 19840, 20212, 20375, 20864, 24800, 25265, 26080, 31000, 32000, 32600, 39680, 40424, 40750, 41728, 49600, 50530, 52160, 62000, 65200, 80848, 81500, 99200, 101060, 104320, 124000, 126325, 130400, 161696, 163000, 198400, 202120, 208640, 248000, 252650, 260800, 323392, 326000, 404240, 496000, 505300, 521600, 631625, 646784, 652000, 808480, 992000, 1010600, 1043200, 1263250, 1293568, 1304000, 1616960, 2021200, 2526500, 2608000, 3233920, 4042400, 5053000, 5216000, 6467840, 8084800, 10106000, 16169600, 20212000, 32339200, 40424000, 80848000, 161696000]

約数ペア:

[(1, 161696000), (2, 80848000), (4, 40424000), (5, 32339200), (8, 20212000), (10, 16169600), (16, 10106000), (20, 8084800), (25, 6467840), (31, 5216000), (32, 5053000), (40, 4042400), (50, 3233920), (62, 2608000), (64, 2526500), (80, 2021200), (100, 1616960), (124, 1304000), (125, 1293568), (128, 1263250), (155, 1043200), (160, 1010600), (163, 992000), (200, 808480), (248, 652000), (250, 646784), (256, 631625), (310, 521600), (320, 505300), (326, 496000), (400, 404240), (496, 326000), (500, 323392), (620, 260800), (640, 252650), (652, 248000), (775, 208640), (800, 202120), (815, 198400), (992, 163000), (1000, 161696), (1240, 130400), (1280, 126325), (1304, 124000), (1550, 104320), (1600, 101060), (1630, 99200), (1984, 81500), (2000, 80848), (2480, 65200), (2608, 62000), (3100, 52160), (3200, 50530), (3260, 49600), (3875, 41728), (3968, 40750), (4000, 40424), (4075, 39680), (4960, 32600), (5053, 32000), (5216, 31000), (6200, 26080), (6400, 25265), (6520, 24800), (7750, 20864), (7936, 20375), (8000, 20212), (8150, 19840), (9920, 16300), (10106, 16000), (10432, 15500), (12400, 13040)]