18203940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:699

約数の個数: 120

約数和(自身を含む): 60557112

約数和(自身を除く): 42353172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 255, 270, 306, 324, 340, 405, 459, 510, 540, 612, 661, 765, 810, 918, 1020, 1322, 1377, 1530, 1620, 1836, 1983, 2295, 2644, 2754, 3060, 3305, 3966, 4590, 5508, 5949, 6610, 6885, 7932, 9180, 9915, 11237, 11898, 13220, 13770, 17847, 19830, 22474, 23796, 27540, 29745, 33711, 35694, 39660, 44948, 53541, 56185, 59490, 67422, 71388, 89235, 101133, 107082, 112370, 118980, 134844, 168555, 178470, 202266, 214164, 224740, 267705, 303399, 337110, 356940, 404532, 505665, 535410, 606798, 674220, 910197, 1011330, 1070820, 1213596, 1516995, 1820394, 2022660, 3033990, 3640788, 4550985, 6067980, 9101970, 18203940]

約数ペア:

[(1, 18203940), (2, 9101970), (3, 6067980), (4, 4550985), (5, 3640788), (6, 3033990), (9, 2022660), (10, 1820394), (12, 1516995), (15, 1213596), (17, 1070820), (18, 1011330), (20, 910197), (27, 674220), (30, 606798), (34, 535410), (36, 505665), (45, 404532), (51, 356940), (54, 337110), (60, 303399), (68, 267705), (81, 224740), (85, 214164), (90, 202266), (102, 178470), (108, 168555), (135, 134844), (153, 118980), (162, 112370), (170, 107082), (180, 101133), (204, 89235), (255, 71388), (270, 67422), (306, 59490), (324, 56185), (340, 53541), (405, 44948), (459, 39660), (510, 35694), (540, 33711), (612, 29745), (661, 27540), (765, 23796), (810, 22474), (918, 19830), (1020, 17847), (1322, 13770), (1377, 13220), (1530, 11898), (1620, 11237), (1836, 9915), (1983, 9180), (2295, 7932), (2644, 6885), (2754, 6610), (3060, 5949), (3305, 5508), (3966, 4590)]