209728680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249677}}^1$

素因数の和:249698

約数の個数: 64

約数和(自身を含む): 719072640

約数和(自身を除く): 509343960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249677, 499354, 749031, 998708, 1248385, 1498062, 1747739, 1997416, 2496770, 2996124, 3495478, 3745155, 4993540, 5243217, 5992248, 6990956, 7490310, 8738695, 9987080, 10486434, 13981912, 14980620, 17477390, 20972868, 26216085, 29961240, 34954780, 41945736, 52432170, 69909560, 104864340, 209728680]

約数ペア:

[(1, 209728680), (2, 104864340), (3, 69909560), (4, 52432170), (5, 41945736), (6, 34954780), (7, 29961240), (8, 26216085), (10, 20972868), (12, 17477390), (14, 14980620), (15, 13981912), (20, 10486434), (21, 9987080), (24, 8738695), (28, 7490310), (30, 6990956), (35, 5992248), (40, 5243217), (42, 4993540), (56, 3745155), (60, 3495478), (70, 2996124), (84, 2496770), (105, 1997416), (120, 1747739), (140, 1498062), (168, 1248385), (210, 998708), (280, 749031), (420, 499354), (840, 249677)]