30685000

素因数分解:

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

素因数の和:81

約数の個数: 120

約数和(自身を含む): 80341470

約数和(自身を除く): 49656470

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, 361, 380, 425, 475, 500, 625, 646, 680, 722, 760, 850, 950, 1000, 1250, 1292, 1444, 1615, 1700, 1805, 1900, 2125, 2375, 2500, 2584, 2888, 3230, 3400, 3610, 3800, 4250, 4750, 5000, 6137, 6460, 7220, 8075, 8500, 9025, 9500, 10625, 11875, 12274, 12920, 14440, 16150, 17000, 18050, 19000, 21250, 23750, 24548, 30685, 32300, 36100, 40375, 42500, 45125, 47500, 49096, 61370, 64600, 72200, 80750, 85000, 90250, 95000, 122740, 153425, 161500, 180500, 201875, 225625, 245480, 306850, 323000, 361000, 403750, 451250, 613700, 767125, 807500, 902500, 1227400, 1534250, 1615000, 1805000, 3068500, 3835625, 6137000, 7671250, 15342500, 30685000]

約数ペア:

[(1, 30685000), (2, 15342500), (4, 7671250), (5, 6137000), (8, 3835625), (10, 3068500), (17, 1805000), (19, 1615000), (20, 1534250), (25, 1227400), (34, 902500), (38, 807500), (40, 767125), (50, 613700), (68, 451250), (76, 403750), (85, 361000), (95, 323000), (100, 306850), (125, 245480), (136, 225625), (152, 201875), (170, 180500), (190, 161500), (200, 153425), (250, 122740), (323, 95000), (340, 90250), (361, 85000), (380, 80750), (425, 72200), (475, 64600), (500, 61370), (625, 49096), (646, 47500), (680, 45125), (722, 42500), (760, 40375), (850, 36100), (950, 32300), (1000, 30685), (1250, 24548), (1292, 23750), (1444, 21250), (1615, 19000), (1700, 18050), (1805, 17000), (1900, 16150), (2125, 14440), (2375, 12920), (2500, 12274), (2584, 11875), (2888, 10625), (3230, 9500), (3400, 9025), (3610, 8500), (3800, 8075), (4250, 7220), (4750, 6460), (5000, 6137)]