15342500

素因数分解:

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

素因数の和:79

約数の個数: 90

約数和(自身を含む): 37492686

約数和(自身を除く): 22150186

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 125, 170, 190, 250, 323, 340, 361, 380, 425, 475, 500, 625, 646, 722, 850, 950, 1250, 1292, 1444, 1615, 1700, 1805, 1900, 2125, 2375, 2500, 3230, 3610, 4250, 4750, 6137, 6460, 7220, 8075, 8500, 9025, 9500, 10625, 11875, 12274, 16150, 18050, 21250, 23750, 24548, 30685, 32300, 36100, 40375, 42500, 45125, 47500, 61370, 80750, 90250, 122740, 153425, 161500, 180500, 201875, 225625, 306850, 403750, 451250, 613700, 767125, 807500, 902500, 1534250, 3068500, 3835625, 7671250, 15342500]

約数ペア:

[(1, 15342500), (2, 7671250), (4, 3835625), (5, 3068500), (10, 1534250), (17, 902500), (19, 807500), (20, 767125), (25, 613700), (34, 451250), (38, 403750), (50, 306850), (68, 225625), (76, 201875), (85, 180500), (95, 161500), (100, 153425), (125, 122740), (170, 90250), (190, 80750), (250, 61370), (323, 47500), (340, 45125), (361, 42500), (380, 40375), (425, 36100), (475, 32300), (500, 30685), (625, 24548), (646, 23750), (722, 21250), (850, 18050), (950, 16150), (1250, 12274), (1292, 11875), (1444, 10625), (1615, 9500), (1700, 9025), (1805, 8500), (1900, 8075), (2125, 7220), (2375, 6460), (2500, 6137), (3230, 4750), (3610, 4250)]