128539740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43721}}^1$

素因数の和:43747

約数の個数: 72

約数和(自身を含む): 418681872

約数和(自身を除く): 290142132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 43721, 87442, 131163, 174884, 218605, 262326, 306047, 437210, 524652, 612094, 655815, 874420, 918141, 1224188, 1311630, 1530235, 1836282, 2142329, 2623260, 3060470, 3672564, 4284658, 4590705, 6120940, 6426987, 8569316, 9181410, 10711645, 12853974, 18362820, 21423290, 25707948, 32134935, 42846580, 64269870, 128539740]

約数ペア:

[(1, 128539740), (2, 64269870), (3, 42846580), (4, 32134935), (5, 25707948), (6, 21423290), (7, 18362820), (10, 12853974), (12, 10711645), (14, 9181410), (15, 8569316), (20, 6426987), (21, 6120940), (28, 4590705), (30, 4284658), (35, 3672564), (42, 3060470), (49, 2623260), (60, 2142329), (70, 1836282), (84, 1530235), (98, 1311630), (105, 1224188), (140, 918141), (147, 874420), (196, 655815), (210, 612094), (245, 524652), (294, 437210), (420, 306047), (490, 262326), (588, 218605), (735, 174884), (980, 131163), (1470, 87442), (2940, 43721)]