18684700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 44528400

約数和(自身を除く): 25843700

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 379, 425, 493, 580, 725, 758, 850, 986, 1450, 1516, 1700, 1895, 1972, 2465, 2900, 3790, 4930, 6443, 7580, 9475, 9860, 10991, 12325, 12886, 18950, 21982, 24650, 25772, 32215, 37900, 43964, 49300, 54955, 64430, 109910, 128860, 161075, 186847, 219820, 274775, 322150, 373694, 549550, 644300, 747388, 934235, 1099100, 1868470, 3736940, 4671175, 9342350, 18684700]

約数ペア:

[(1, 18684700), (2, 9342350), (4, 4671175), (5, 3736940), (10, 1868470), (17, 1099100), (20, 934235), (25, 747388), (29, 644300), (34, 549550), (50, 373694), (58, 322150), (68, 274775), (85, 219820), (100, 186847), (116, 161075), (145, 128860), (170, 109910), (290, 64430), (340, 54955), (379, 49300), (425, 43964), (493, 37900), (580, 32215), (725, 25772), (758, 24650), (850, 21982), (986, 18950), (1450, 12886), (1516, 12325), (1700, 10991), (1895, 9860), (1972, 9475), (2465, 7580), (2900, 6443), (3790, 4930)]