79918000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1343

約数の個数: 80

約数和(自身を含む): 199630080

約数和(自身を除く): 119712080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 620, 775, 1000, 1240, 1289, 1550, 2000, 2480, 2578, 3100, 3875, 5156, 6200, 6445, 7750, 10312, 12400, 12890, 15500, 20624, 25780, 31000, 32225, 39959, 51560, 62000, 64450, 79918, 103120, 128900, 159836, 161125, 199795, 257800, 319672, 322250, 399590, 515600, 639344, 644500, 799180, 998975, 1289000, 1598360, 1997950, 2578000, 3196720, 3995900, 4994875, 7991800, 9989750, 15983600, 19979500, 39959000, 79918000]

約数ペア:

[(1, 79918000), (2, 39959000), (4, 19979500), (5, 15983600), (8, 9989750), (10, 7991800), (16, 4994875), (20, 3995900), (25, 3196720), (31, 2578000), (40, 1997950), (50, 1598360), (62, 1289000), (80, 998975), (100, 799180), (124, 644500), (125, 639344), (155, 515600), (200, 399590), (248, 322250), (250, 319672), (310, 257800), (400, 199795), (496, 161125), (500, 159836), (620, 128900), (775, 103120), (1000, 79918), (1240, 64450), (1289, 62000), (1550, 51560), (2000, 39959), (2480, 32225), (2578, 31000), (3100, 25780), (3875, 20624), (5156, 15500), (6200, 12890), (6445, 12400), (7750, 10312)]