18642890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1163}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 38551680

約数和(自身を除く): 19908790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 229, 458, 1145, 1163, 1603, 2290, 2326, 3206, 5815, 8015, 8141, 11630, 16030, 16282, 40705, 81410, 266327, 532654, 1331635, 1864289, 2663270, 3728578, 9321445, 18642890]

約数ペア:

[(1, 18642890), (2, 9321445), (5, 3728578), (7, 2663270), (10, 1864289), (14, 1331635), (35, 532654), (70, 266327), (229, 81410), (458, 40705), (1145, 16282), (1163, 16030), (1603, 11630), (2290, 8141), (2326, 8015), (3206, 5815)]