20806470

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1547

約数の個数: 80

約数和(自身を含む): 59276448

約数和(自身を除く): 38469978

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1511, 1530, 2295, 2754, 3022, 4533, 4590, 6885, 7555, 9066, 13599, 13770, 15110, 22665, 25687, 27198, 40797, 45330, 51374, 67995, 77061, 81594, 122391, 128435, 135990, 154122, 203985, 231183, 244782, 256870, 385305, 407970, 462366, 611955, 693549, 770610, 1155915, 1223910, 1387098, 2080647, 2311830, 3467745, 4161294, 6935490, 10403235, 20806470]

約数ペア:

[(1, 20806470), (2, 10403235), (3, 6935490), (5, 4161294), (6, 3467745), (9, 2311830), (10, 2080647), (15, 1387098), (17, 1223910), (18, 1155915), (27, 770610), (30, 693549), (34, 611955), (45, 462366), (51, 407970), (54, 385305), (81, 256870), (85, 244782), (90, 231183), (102, 203985), (135, 154122), (153, 135990), (162, 128435), (170, 122391), (255, 81594), (270, 77061), (306, 67995), (405, 51374), (459, 45330), (510, 40797), (765, 27198), (810, 25687), (918, 22665), (1377, 15110), (1511, 13770), (1530, 13599), (2295, 9066), (2754, 7555), (3022, 6885), (4533, 4590)]