121790000

素因数分解:

$2^4\times 5^4\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:688

約数の個数: 100

約数和(自身を含む): 310869240

約数和(自身を除く): 189079240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 500, 625, 641, 760, 950, 1000, 1250, 1282, 1520, 1900, 2000, 2375, 2500, 2564, 3205, 3800, 4750, 5000, 5128, 6410, 7600, 9500, 10000, 10256, 11875, 12179, 12820, 16025, 19000, 23750, 24358, 25640, 32050, 38000, 47500, 48716, 51280, 60895, 64100, 80125, 95000, 97432, 121790, 128200, 160250, 190000, 194864, 243580, 256400, 304475, 320500, 400625, 487160, 608950, 641000, 801250, 974320, 1217900, 1282000, 1522375, 1602500, 2435800, 3044750, 3205000, 4871600, 6089500, 6410000, 7611875, 12179000, 15223750, 24358000, 30447500, 60895000, 121790000]

約数ペア:

[(1, 121790000), (2, 60895000), (4, 30447500), (5, 24358000), (8, 15223750), (10, 12179000), (16, 7611875), (19, 6410000), (20, 6089500), (25, 4871600), (38, 3205000), (40, 3044750), (50, 2435800), (76, 1602500), (80, 1522375), (95, 1282000), (100, 1217900), (125, 974320), (152, 801250), (190, 641000), (200, 608950), (250, 487160), (304, 400625), (380, 320500), (400, 304475), (475, 256400), (500, 243580), (625, 194864), (641, 190000), (760, 160250), (950, 128200), (1000, 121790), (1250, 97432), (1282, 95000), (1520, 80125), (1900, 64100), (2000, 60895), (2375, 51280), (2500, 48716), (2564, 47500), (3205, 38000), (3800, 32050), (4750, 25640), (5000, 24358), (5128, 23750), (6410, 19000), (7600, 16025), (9500, 12820), (10000, 12179), (10256, 11875)]