69865000

素因数分解:

$2^3\times 5^4\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 166587300

約数和(自身を除く): 96722300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 157, 178, 200, 250, 314, 356, 445, 500, 625, 628, 712, 785, 890, 1000, 1250, 1256, 1570, 1780, 2225, 2500, 3140, 3560, 3925, 4450, 5000, 6280, 7850, 8900, 11125, 13973, 15700, 17800, 19625, 22250, 27946, 31400, 39250, 44500, 55625, 55892, 69865, 78500, 89000, 98125, 111250, 111784, 139730, 157000, 196250, 222500, 279460, 349325, 392500, 445000, 558920, 698650, 785000, 1397300, 1746625, 2794600, 3493250, 6986500, 8733125, 13973000, 17466250, 34932500, 69865000]

約数ペア:

[(1, 69865000), (2, 34932500), (4, 17466250), (5, 13973000), (8, 8733125), (10, 6986500), (20, 3493250), (25, 2794600), (40, 1746625), (50, 1397300), (89, 785000), (100, 698650), (125, 558920), (157, 445000), (178, 392500), (200, 349325), (250, 279460), (314, 222500), (356, 196250), (445, 157000), (500, 139730), (625, 111784), (628, 111250), (712, 98125), (785, 89000), (890, 78500), (1000, 69865), (1250, 55892), (1256, 55625), (1570, 44500), (1780, 39250), (2225, 31400), (2500, 27946), (3140, 22250), (3560, 19625), (3925, 17800), (4450, 15700), (5000, 13973), (6280, 11125), (7850, 8900)]