1228402980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{974923}}^1$

素因数の和:974945

約数の個数: 72

約数和(自身を含む): 4258468032

約数和(自身を除く): 3030065052

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, 974923, 1949846, 2924769, 3899692, 4874615, 5849538, 6824461, 8774307, 9749230, 11699076, 13648922, 14623845, 17548614, 19498460, 20473383, 27297844, 29247690, 34122305, 35097228, 40946766, 43871535, 58495380, 61420149, 68244610, 81893532, 87743070, 102366915, 122840298, 136489220, 175486140, 204733830, 245680596, 307100745, 409467660, 614201490, 1228402980]

約数ペア:

[(1, 1228402980), (2, 614201490), (3, 409467660), (4, 307100745), (5, 245680596), (6, 204733830), (7, 175486140), (9, 136489220), (10, 122840298), (12, 102366915), (14, 87743070), (15, 81893532), (18, 68244610), (20, 61420149), (21, 58495380), (28, 43871535), (30, 40946766), (35, 35097228), (36, 34122305), (42, 29247690), (45, 27297844), (60, 20473383), (63, 19498460), (70, 17548614), (84, 14623845), (90, 13648922), (105, 11699076), (126, 9749230), (140, 8774307), (180, 6824461), (210, 5849538), (252, 4874615), (315, 3899692), (420, 2924769), (630, 1949846), (1260, 974923)]