18284840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 50479200

約数和(自身を除く): 32194360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 491, 532, 665, 760, 931, 980, 982, 1064, 1330, 1862, 1960, 1964, 2455, 2660, 3437, 3724, 3928, 4655, 4910, 5320, 6874, 7448, 9310, 9329, 9820, 13748, 17185, 18620, 18658, 19640, 24059, 27496, 34370, 37240, 37316, 46645, 48118, 65303, 68740, 74632, 93290, 96236, 120295, 130606, 137480, 186580, 192472, 240590, 261212, 326515, 373160, 457121, 481180, 522424, 653030, 914242, 962360, 1306060, 1828484, 2285605, 2612120, 3656968, 4571210, 9142420, 18284840]

約数ペア:

[(1, 18284840), (2, 9142420), (4, 4571210), (5, 3656968), (7, 2612120), (8, 2285605), (10, 1828484), (14, 1306060), (19, 962360), (20, 914242), (28, 653030), (35, 522424), (38, 481180), (40, 457121), (49, 373160), (56, 326515), (70, 261212), (76, 240590), (95, 192472), (98, 186580), (133, 137480), (140, 130606), (152, 120295), (190, 96236), (196, 93290), (245, 74632), (266, 68740), (280, 65303), (380, 48118), (392, 46645), (490, 37316), (491, 37240), (532, 34370), (665, 27496), (760, 24059), (931, 19640), (980, 18658), (982, 18620), (1064, 17185), (1330, 13748), (1862, 9820), (1960, 9329), (1964, 9310), (2455, 7448), (2660, 6874), (3437, 5320), (3724, 4910), (3928, 4655)]