2181390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 5702400

約数和(自身を除く): 3521010

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 43, 57, 86, 89, 95, 114, 129, 178, 190, 215, 258, 267, 285, 430, 445, 534, 570, 645, 817, 890, 1290, 1335, 1634, 1691, 2451, 2670, 3382, 3827, 4085, 4902, 5073, 7654, 8170, 8455, 10146, 11481, 12255, 16910, 19135, 22962, 24510, 25365, 38270, 50730, 57405, 72713, 114810, 145426, 218139, 363565, 436278, 727130, 1090695, 2181390]

約数ペア:

[(1, 2181390), (2, 1090695), (3, 727130), (5, 436278), (6, 363565), (10, 218139), (15, 145426), (19, 114810), (30, 72713), (38, 57405), (43, 50730), (57, 38270), (86, 25365), (89, 24510), (95, 22962), (114, 19135), (129, 16910), (178, 12255), (190, 11481), (215, 10146), (258, 8455), (267, 8170), (285, 7654), (430, 5073), (445, 4902), (534, 4085), (570, 3827), (645, 3382), (817, 2670), (890, 2451), (1290, 1691), (1335, 1634)]