19698750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:148

約数の個数: 120

約数和(自身を含む): 57019248

約数和(自身を除く): 37320498

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 30, 34, 45, 50, 51, 75, 85, 90, 102, 103, 125, 150, 153, 170, 206, 225, 250, 255, 306, 309, 375, 425, 450, 510, 515, 618, 625, 750, 765, 850, 927, 1030, 1125, 1250, 1275, 1530, 1545, 1751, 1854, 1875, 2125, 2250, 2550, 2575, 3090, 3502, 3750, 3825, 4250, 4635, 5150, 5253, 5625, 6375, 7650, 7725, 8755, 9270, 10506, 10625, 11250, 12750, 12875, 15450, 15759, 17510, 19125, 21250, 23175, 25750, 26265, 31518, 31875, 38250, 38625, 43775, 46350, 52530, 63750, 64375, 77250, 78795, 87550, 95625, 115875, 128750, 131325, 157590, 191250, 193125, 218875, 231750, 262650, 386250, 393975, 437750, 579375, 656625, 787950, 1094375, 1158750, 1313250, 1969875, 2188750, 3283125, 3939750, 6566250, 9849375, 19698750]

約数ペア:

[(1, 19698750), (2, 9849375), (3, 6566250), (5, 3939750), (6, 3283125), (9, 2188750), (10, 1969875), (15, 1313250), (17, 1158750), (18, 1094375), (25, 787950), (30, 656625), (34, 579375), (45, 437750), (50, 393975), (51, 386250), (75, 262650), (85, 231750), (90, 218875), (102, 193125), (103, 191250), (125, 157590), (150, 131325), (153, 128750), (170, 115875), (206, 95625), (225, 87550), (250, 78795), (255, 77250), (306, 64375), (309, 63750), (375, 52530), (425, 46350), (450, 43775), (510, 38625), (515, 38250), (618, 31875), (625, 31518), (750, 26265), (765, 25750), (850, 23175), (927, 21250), (1030, 19125), (1125, 17510), (1250, 15759), (1275, 15450), (1530, 12875), (1545, 12750), (1751, 11250), (1854, 10625), (1875, 10506), (2125, 9270), (2250, 8755), (2550, 7725), (2575, 7650), (3090, 6375), (3502, 5625), (3750, 5253), (3825, 5150), (4250, 4635)]