18894820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{467}}^1$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 48275136

約数和(自身を除く): 29380316

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 467, 476, 578, 595, 934, 1156, 1190, 1445, 1868, 2023, 2335, 2380, 2890, 3269, 4046, 4670, 5780, 6538, 7939, 8092, 9340, 10115, 13076, 15878, 16345, 20230, 31756, 32690, 39695, 40460, 55573, 65380, 79390, 111146, 134963, 158780, 222292, 269926, 277865, 539852, 555730, 674815, 944741, 1111460, 1349630, 1889482, 2699260, 3778964, 4723705, 9447410, 18894820]

約数ペア:

[(1, 18894820), (2, 9447410), (4, 4723705), (5, 3778964), (7, 2699260), (10, 1889482), (14, 1349630), (17, 1111460), (20, 944741), (28, 674815), (34, 555730), (35, 539852), (68, 277865), (70, 269926), (85, 222292), (119, 158780), (140, 134963), (170, 111146), (238, 79390), (289, 65380), (340, 55573), (467, 40460), (476, 39695), (578, 32690), (595, 31756), (934, 20230), (1156, 16345), (1190, 15878), (1445, 13076), (1868, 10115), (2023, 9340), (2335, 8092), (2380, 7939), (2890, 6538), (3269, 5780), (4046, 4670)]