15820140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{5381}}^1$

素因数の和:5407

約数の個数: 72

約数和(自身を含む): 51538032

約数和(自身を除く): 35717892

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, 5381, 10762, 16143, 21524, 26905, 32286, 37667, 53810, 64572, 75334, 80715, 107620, 113001, 150668, 161430, 188335, 226002, 263669, 322860, 376670, 452004, 527338, 565005, 753340, 791007, 1054676, 1130010, 1318345, 1582014, 2260020, 2636690, 3164028, 3955035, 5273380, 7910070, 15820140]

約数ペア:

[(1, 15820140), (2, 7910070), (3, 5273380), (4, 3955035), (5, 3164028), (6, 2636690), (7, 2260020), (10, 1582014), (12, 1318345), (14, 1130010), (15, 1054676), (20, 791007), (21, 753340), (28, 565005), (30, 527338), (35, 452004), (42, 376670), (49, 322860), (60, 263669), (70, 226002), (84, 188335), (98, 161430), (105, 150668), (140, 113001), (147, 107620), (196, 80715), (210, 75334), (245, 64572), (294, 53810), (420, 37667), (490, 32286), (588, 26905), (735, 21524), (980, 16143), (1470, 10762), (2940, 5381)]