81982500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:687

約数の個数: 120

約数和(自身を含む): 253493856

約数和(自身を除く): 171511356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 125, 150, 170, 204, 250, 255, 300, 340, 375, 425, 500, 510, 625, 643, 750, 850, 1020, 1250, 1275, 1286, 1500, 1700, 1875, 1929, 2125, 2500, 2550, 2572, 3215, 3750, 3858, 4250, 5100, 6375, 6430, 7500, 7716, 8500, 9645, 10625, 10931, 12750, 12860, 16075, 19290, 21250, 21862, 25500, 31875, 32150, 32793, 38580, 42500, 43724, 48225, 54655, 63750, 64300, 65586, 80375, 96450, 109310, 127500, 131172, 160750, 163965, 192900, 218620, 241125, 273275, 321500, 327930, 401875, 482250, 546550, 655860, 803750, 819825, 964500, 1093100, 1205625, 1366375, 1607500, 1639650, 2411250, 2732750, 3279300, 4099125, 4822500, 5465500, 6831875, 8198250, 13663750, 16396500, 20495625, 27327500, 40991250, 81982500]

約数ペア:

[(1, 81982500), (2, 40991250), (3, 27327500), (4, 20495625), (5, 16396500), (6, 13663750), (10, 8198250), (12, 6831875), (15, 5465500), (17, 4822500), (20, 4099125), (25, 3279300), (30, 2732750), (34, 2411250), (50, 1639650), (51, 1607500), (60, 1366375), (68, 1205625), (75, 1093100), (85, 964500), (100, 819825), (102, 803750), (125, 655860), (150, 546550), (170, 482250), (204, 401875), (250, 327930), (255, 321500), (300, 273275), (340, 241125), (375, 218620), (425, 192900), (500, 163965), (510, 160750), (625, 131172), (643, 127500), (750, 109310), (850, 96450), (1020, 80375), (1250, 65586), (1275, 64300), (1286, 63750), (1500, 54655), (1700, 48225), (1875, 43724), (1929, 42500), (2125, 38580), (2500, 32793), (2550, 32150), (2572, 31875), (3215, 25500), (3750, 21862), (3858, 21250), (4250, 19290), (5100, 16075), (6375, 12860), (6430, 12750), (7500, 10931), (7716, 10625), (8500, 9645)]