19810950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{457}}^1$

素因数の和:506

約数の個数: 72

約数和(自身を含む): 52305432

約数和(自身を除く): 32494482

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 289, 425, 457, 510, 578, 850, 867, 914, 1275, 1371, 1445, 1734, 2285, 2550, 2742, 2890, 4335, 4570, 6855, 7225, 7769, 8670, 11425, 13710, 14450, 15538, 21675, 22850, 23307, 34275, 38845, 43350, 46614, 68550, 77690, 116535, 132073, 194225, 233070, 264146, 388450, 396219, 582675, 660365, 792438, 1165350, 1320730, 1981095, 3301825, 3962190, 6603650, 9905475, 19810950]

約数ペア:

[(1, 19810950), (2, 9905475), (3, 6603650), (5, 3962190), (6, 3301825), (10, 1981095), (15, 1320730), (17, 1165350), (25, 792438), (30, 660365), (34, 582675), (50, 396219), (51, 388450), (75, 264146), (85, 233070), (102, 194225), (150, 132073), (170, 116535), (255, 77690), (289, 68550), (425, 46614), (457, 43350), (510, 38845), (578, 34275), (850, 23307), (867, 22850), (914, 21675), (1275, 15538), (1371, 14450), (1445, 13710), (1734, 11425), (2285, 8670), (2550, 7769), (2742, 7225), (2890, 6855), (4335, 4570)]