18294220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{877}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 44251200

約数和(自身を除く): 25956980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 877, 1043, 1490, 1754, 2086, 2980, 3508, 4172, 4385, 5215, 6139, 8770, 10430, 12278, 17540, 20860, 24556, 30695, 61390, 122780, 130673, 261346, 522692, 653365, 914711, 1306730, 1829422, 2613460, 3658844, 4573555, 9147110, 18294220]

約数ペア:

[(1, 18294220), (2, 9147110), (4, 4573555), (5, 3658844), (7, 2613460), (10, 1829422), (14, 1306730), (20, 914711), (28, 653365), (35, 522692), (70, 261346), (140, 130673), (149, 122780), (298, 61390), (596, 30695), (745, 24556), (877, 20860), (1043, 17540), (1490, 12278), (1754, 10430), (2086, 8770), (2980, 6139), (3508, 5215), (4172, 4385)]