18234880

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:459

約数の個数: 80

約数和(自身を含む): 46403280

約数和(自身を除く): 28168400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 419, 512, 544, 640, 680, 838, 1088, 1280, 1360, 1676, 2095, 2176, 2560, 2720, 3352, 4190, 4352, 5440, 6704, 7123, 8380, 8704, 10880, 13408, 14246, 16760, 21760, 26816, 28492, 33520, 35615, 43520, 53632, 56984, 67040, 71230, 107264, 113968, 134080, 142460, 214528, 227936, 268160, 284920, 455872, 536320, 569840, 911744, 1072640, 1139680, 1823488, 2279360, 3646976, 4558720, 9117440, 18234880]

約数ペア:

[(1, 18234880), (2, 9117440), (4, 4558720), (5, 3646976), (8, 2279360), (10, 1823488), (16, 1139680), (17, 1072640), (20, 911744), (32, 569840), (34, 536320), (40, 455872), (64, 284920), (68, 268160), (80, 227936), (85, 214528), (128, 142460), (136, 134080), (160, 113968), (170, 107264), (256, 71230), (272, 67040), (320, 56984), (340, 53632), (419, 43520), (512, 35615), (544, 33520), (640, 28492), (680, 26816), (838, 21760), (1088, 16760), (1280, 14246), (1360, 13408), (1676, 10880), (2095, 8704), (2176, 8380), (2560, 7123), (2720, 6704), (3352, 5440), (4190, 4352)]