809888940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{642769}}^1$

素因数の和:642791

約数の個数: 72

約数和(自身を含む): 2807619360

約数和(自身を除く): 1997730420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 642769, 1285538, 1928307, 2571076, 3213845, 3856614, 4499383, 5784921, 6427690, 7713228, 8998766, 9641535, 11569842, 12855380, 13498149, 17997532, 19283070, 22496915, 23139684, 26996298, 28924605, 38566140, 40494447, 44993830, 53992596, 57849210, 67490745, 80988894, 89987660, 115698420, 134981490, 161977788, 202472235, 269962980, 404944470, 809888940]

約数ペア:

[(1, 809888940), (2, 404944470), (3, 269962980), (4, 202472235), (5, 161977788), (6, 134981490), (7, 115698420), (9, 89987660), (10, 80988894), (12, 67490745), (14, 57849210), (15, 53992596), (18, 44993830), (20, 40494447), (21, 38566140), (28, 28924605), (30, 26996298), (35, 23139684), (36, 22496915), (42, 19283070), (45, 17997532), (60, 13498149), (63, 12855380), (70, 11569842), (84, 9641535), (90, 8998766), (105, 7713228), (126, 6427690), (140, 5784921), (180, 4499383), (210, 3856614), (252, 3213845), (315, 2571076), (420, 1928307), (630, 1285538), (1260, 642769)]