18262420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 46811520

約数和(自身を除く): 28549100

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 34, 38, 44, 55, 68, 76, 85, 95, 110, 170, 187, 190, 209, 220, 257, 323, 340, 374, 380, 418, 514, 646, 748, 836, 935, 1028, 1045, 1285, 1292, 1615, 1870, 2090, 2570, 2827, 3230, 3553, 3740, 4180, 4369, 4883, 5140, 5654, 6460, 7106, 8738, 9766, 11308, 14135, 14212, 17476, 17765, 19532, 21845, 24415, 28270, 35530, 43690, 48059, 48830, 53713, 56540, 71060, 83011, 87380, 96118, 97660, 107426, 166022, 192236, 214852, 240295, 268565, 332044, 415055, 480590, 537130, 830110, 913121, 961180, 1074260, 1660220, 1826242, 3652484, 4565605, 9131210, 18262420]

約数ペア:

[(1, 18262420), (2, 9131210), (4, 4565605), (5, 3652484), (10, 1826242), (11, 1660220), (17, 1074260), (19, 961180), (20, 913121), (22, 830110), (34, 537130), (38, 480590), (44, 415055), (55, 332044), (68, 268565), (76, 240295), (85, 214852), (95, 192236), (110, 166022), (170, 107426), (187, 97660), (190, 96118), (209, 87380), (220, 83011), (257, 71060), (323, 56540), (340, 53713), (374, 48830), (380, 48059), (418, 43690), (514, 35530), (646, 28270), (748, 24415), (836, 21845), (935, 19532), (1028, 17765), (1045, 17476), (1285, 14212), (1292, 14135), (1615, 11308), (1870, 9766), (2090, 8738), (2570, 7106), (2827, 6460), (3230, 5654), (3553, 5140), (3740, 4883), (4180, 4369)]