2191420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1423}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 5741568

約数和(自身を除く): 3550148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1423, 1540, 2846, 5692, 7115, 9961, 14230, 15653, 19922, 28460, 31306, 39844, 49805, 62612, 78265, 99610, 109571, 156530, 199220, 219142, 313060, 438284, 547855, 1095710, 2191420]

約数ペア:

[(1, 2191420), (2, 1095710), (4, 547855), (5, 438284), (7, 313060), (10, 219142), (11, 199220), (14, 156530), (20, 109571), (22, 99610), (28, 78265), (35, 62612), (44, 49805), (55, 39844), (70, 31306), (77, 28460), (110, 19922), (140, 15653), (154, 14230), (220, 9961), (308, 7115), (385, 5692), (770, 2846), (1423, 1540)]