1615000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 80

約数和(自身を含む): 4217400

約数和(自身を除く): 2602400

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 85, 95, 100, 125, 136, 152, 170, 190, 200, 250, 323, 340, 380, 425, 475, 500, 625, 646, 680, 760, 850, 950, 1000, 1250, 1292, 1615, 1700, 1900, 2125, 2375, 2500, 2584, 3230, 3400, 3800, 4250, 4750, 5000, 6460, 8075, 8500, 9500, 10625, 11875, 12920, 16150, 17000, 19000, 21250, 23750, 32300, 40375, 42500, 47500, 64600, 80750, 85000, 95000, 161500, 201875, 323000, 403750, 807500, 1615000]

約数ペア:

[(1, 1615000), (2, 807500), (4, 403750), (5, 323000), (8, 201875), (10, 161500), (17, 95000), (19, 85000), (20, 80750), (25, 64600), (34, 47500), (38, 42500), (40, 40375), (50, 32300), (68, 23750), (76, 21250), (85, 19000), (95, 17000), (100, 16150), (125, 12920), (136, 11875), (152, 10625), (170, 9500), (190, 8500), (200, 8075), (250, 6460), (323, 5000), (340, 4750), (380, 4250), (425, 3800), (475, 3400), (500, 3230), (625, 2584), (646, 2500), (680, 2375), (760, 2125), (850, 1900), (950, 1700), (1000, 1615), (1250, 1292)]