19509100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 46785200

約数和(自身を除く): 27276100

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 349, 430, 559, 650, 698, 860, 1075, 1118, 1300, 1396, 1745, 2150, 2236, 2795, 3490, 4300, 4537, 5590, 6980, 8725, 9074, 11180, 13975, 15007, 17450, 18148, 22685, 27950, 30014, 34900, 45370, 55900, 60028, 75035, 90740, 113425, 150070, 195091, 226850, 300140, 375175, 390182, 453700, 750350, 780364, 975455, 1500700, 1950910, 3901820, 4877275, 9754550, 19509100]

約数ペア:

[(1, 19509100), (2, 9754550), (4, 4877275), (5, 3901820), (10, 1950910), (13, 1500700), (20, 975455), (25, 780364), (26, 750350), (43, 453700), (50, 390182), (52, 375175), (65, 300140), (86, 226850), (100, 195091), (130, 150070), (172, 113425), (215, 90740), (260, 75035), (325, 60028), (349, 55900), (430, 45370), (559, 34900), (650, 30014), (698, 27950), (860, 22685), (1075, 18148), (1118, 17450), (1300, 15007), (1396, 13975), (1745, 11180), (2150, 9074), (2236, 8725), (2795, 6980), (3490, 5590), (4300, 4537)]