18168750

素因数分解:

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

素因数の和:69

約数の個数: 144

約数和(自身を含む): 54840240

約数和(自身を除く): 36671490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 19, 25, 30, 34, 38, 45, 50, 51, 57, 75, 85, 90, 95, 102, 114, 125, 150, 153, 170, 171, 190, 225, 250, 255, 285, 306, 323, 342, 375, 425, 450, 475, 510, 570, 625, 646, 750, 765, 850, 855, 950, 969, 1125, 1250, 1275, 1425, 1530, 1615, 1710, 1875, 1938, 2125, 2250, 2375, 2550, 2850, 2907, 3125, 3230, 3750, 3825, 4250, 4275, 4750, 4845, 5625, 5814, 6250, 6375, 7125, 7650, 8075, 8550, 9375, 9690, 10625, 11250, 11875, 12750, 14250, 14535, 16150, 18750, 19125, 21250, 21375, 23750, 24225, 28125, 29070, 31875, 35625, 38250, 40375, 42750, 48450, 53125, 56250, 59375, 63750, 71250, 72675, 80750, 95625, 106250, 106875, 118750, 121125, 145350, 159375, 178125, 191250, 201875, 213750, 242250, 318750, 356250, 363375, 403750, 478125, 534375, 605625, 726750, 956250, 1009375, 1068750, 1211250, 1816875, 2018750, 3028125, 3633750, 6056250, 9084375, 18168750]

約数ペア:

[(1, 18168750), (2, 9084375), (3, 6056250), (5, 3633750), (6, 3028125), (9, 2018750), (10, 1816875), (15, 1211250), (17, 1068750), (18, 1009375), (19, 956250), (25, 726750), (30, 605625), (34, 534375), (38, 478125), (45, 403750), (50, 363375), (51, 356250), (57, 318750), (75, 242250), (85, 213750), (90, 201875), (95, 191250), (102, 178125), (114, 159375), (125, 145350), (150, 121125), (153, 118750), (170, 106875), (171, 106250), (190, 95625), (225, 80750), (250, 72675), (255, 71250), (285, 63750), (306, 59375), (323, 56250), (342, 53125), (375, 48450), (425, 42750), (450, 40375), (475, 38250), (510, 35625), (570, 31875), (625, 29070), (646, 28125), (750, 24225), (765, 23750), (850, 21375), (855, 21250), (950, 19125), (969, 18750), (1125, 16150), (1250, 14535), (1275, 14250), (1425, 12750), (1530, 11875), (1615, 11250), (1710, 10625), (1875, 9690), (1938, 9375), (2125, 8550), (2250, 8075), (2375, 7650), (2550, 7125), (2850, 6375), (2907, 6250), (3125, 5814), (3230, 5625), (3750, 4845), (3825, 4750), (4250, 4275)]