79800420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{27143}}^1$

素因数の和:27169

約数の個数: 72

約数和(自身を含む): 259930944

約数和(自身を除く): 180130524

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, 27143, 54286, 81429, 108572, 135715, 162858, 190001, 271430, 325716, 380002, 407145, 542860, 570003, 760004, 814290, 950005, 1140006, 1330007, 1628580, 1900010, 2280012, 2660014, 2850015, 3800020, 3990021, 5320028, 5700030, 6650035, 7980042, 11400060, 13300070, 15960084, 19950105, 26600140, 39900210, 79800420]

約数ペア:

[(1, 79800420), (2, 39900210), (3, 26600140), (4, 19950105), (5, 15960084), (6, 13300070), (7, 11400060), (10, 7980042), (12, 6650035), (14, 5700030), (15, 5320028), (20, 3990021), (21, 3800020), (28, 2850015), (30, 2660014), (35, 2280012), (42, 1900010), (49, 1628580), (60, 1330007), (70, 1140006), (84, 950005), (98, 814290), (105, 760004), (140, 570003), (147, 542860), (196, 407145), (210, 380002), (245, 325716), (294, 271430), (420, 190001), (490, 162858), (588, 135715), (735, 108572), (980, 81429), (1470, 54286), (2940, 27143)]