20591250

素因数分解:

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

素因数の和:78

約数の個数: 120

約数和(自身を含む): 57544080

約数和(自身を除く): 36952830

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 25, 30, 34, 38, 50, 51, 57, 75, 85, 95, 102, 114, 125, 150, 170, 190, 250, 255, 285, 289, 323, 375, 425, 475, 510, 570, 578, 625, 646, 750, 850, 867, 950, 969, 1250, 1275, 1425, 1445, 1615, 1734, 1875, 1938, 2125, 2375, 2550, 2850, 2890, 3230, 3750, 4250, 4335, 4750, 4845, 5491, 6375, 7125, 7225, 8075, 8670, 9690, 10625, 10982, 11875, 12750, 14250, 14450, 16150, 16473, 21250, 21675, 23750, 24225, 27455, 31875, 32946, 35625, 36125, 40375, 43350, 48450, 54910, 63750, 71250, 72250, 80750, 82365, 108375, 121125, 137275, 164730, 180625, 201875, 216750, 242250, 274550, 361250, 403750, 411825, 541875, 605625, 686375, 823650, 1083750, 1211250, 1372750, 2059125, 3431875, 4118250, 6863750, 10295625, 20591250]

約数ペア:

[(1, 20591250), (2, 10295625), (3, 6863750), (5, 4118250), (6, 3431875), (10, 2059125), (15, 1372750), (17, 1211250), (19, 1083750), (25, 823650), (30, 686375), (34, 605625), (38, 541875), (50, 411825), (51, 403750), (57, 361250), (75, 274550), (85, 242250), (95, 216750), (102, 201875), (114, 180625), (125, 164730), (150, 137275), (170, 121125), (190, 108375), (250, 82365), (255, 80750), (285, 72250), (289, 71250), (323, 63750), (375, 54910), (425, 48450), (475, 43350), (510, 40375), (570, 36125), (578, 35625), (625, 32946), (646, 31875), (750, 27455), (850, 24225), (867, 23750), (950, 21675), (969, 21250), (1250, 16473), (1275, 16150), (1425, 14450), (1445, 14250), (1615, 12750), (1734, 11875), (1875, 10982), (1938, 10625), (2125, 9690), (2375, 8670), (2550, 8075), (2850, 7225), (2890, 7125), (3230, 6375), (3750, 5491), (4250, 4845), (4335, 4750)]