28031220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22247}}^1$

素因数の和:22269

約数の個数: 72

約数和(自身を含む): 97179264

約数和(自身を除く): 69148044

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, 22247, 44494, 66741, 88988, 111235, 133482, 155729, 200223, 222470, 266964, 311458, 333705, 400446, 444940, 467187, 622916, 667410, 778645, 800892, 934374, 1001115, 1334820, 1401561, 1557290, 1868748, 2002230, 2335935, 2803122, 3114580, 4004460, 4671870, 5606244, 7007805, 9343740, 14015610, 28031220]

約数ペア:

[(1, 28031220), (2, 14015610), (3, 9343740), (4, 7007805), (5, 5606244), (6, 4671870), (7, 4004460), (9, 3114580), (10, 2803122), (12, 2335935), (14, 2002230), (15, 1868748), (18, 1557290), (20, 1401561), (21, 1334820), (28, 1001115), (30, 934374), (35, 800892), (36, 778645), (42, 667410), (45, 622916), (60, 467187), (63, 444940), (70, 400446), (84, 333705), (90, 311458), (105, 266964), (126, 222470), (140, 200223), (180, 155729), (210, 133482), (252, 111235), (315, 88988), (420, 66741), (630, 44494), (1260, 22247)]