857884860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{680861}}^1$

素因数の和:680883

約数の個数: 72

約数和(自身を含む): 2974005216

約数和(自身を除く): 2116120356

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, 680861, 1361722, 2042583, 2723444, 3404305, 4085166, 4766027, 6127749, 6808610, 8170332, 9532054, 10212915, 12255498, 13617220, 14298081, 19064108, 20425830, 23830135, 24510996, 28596162, 30638745, 40851660, 42894243, 47660270, 57192324, 61277490, 71490405, 85788486, 95320540, 122554980, 142980810, 171576972, 214471215, 285961620, 428942430, 857884860]

約数ペア:

[(1, 857884860), (2, 428942430), (3, 285961620), (4, 214471215), (5, 171576972), (6, 142980810), (7, 122554980), (9, 95320540), (10, 85788486), (12, 71490405), (14, 61277490), (15, 57192324), (18, 47660270), (20, 42894243), (21, 40851660), (28, 30638745), (30, 28596162), (35, 24510996), (36, 23830135), (42, 20425830), (45, 19064108), (60, 14298081), (63, 13617220), (70, 12255498), (84, 10212915), (90, 9532054), (105, 8170332), (126, 6808610), (140, 6127749), (180, 4766027), (210, 4085166), (252, 3404305), (315, 2723444), (420, 2042583), (630, 1361722), (1260, 680861)]