20694780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6763}}^1$

素因数の和:6795

約数の個数: 72

約数和(自身を含む): 66476592

約数和(自身を除く): 45781812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6763, 13526, 20289, 27052, 33815, 40578, 60867, 67630, 81156, 101445, 114971, 121734, 135260, 202890, 229942, 243468, 304335, 344913, 405780, 459884, 574855, 608670, 689826, 1034739, 1149710, 1217340, 1379652, 1724565, 2069478, 2299420, 3449130, 4138956, 5173695, 6898260, 10347390, 20694780]

約数ペア:

[(1, 20694780), (2, 10347390), (3, 6898260), (4, 5173695), (5, 4138956), (6, 3449130), (9, 2299420), (10, 2069478), (12, 1724565), (15, 1379652), (17, 1217340), (18, 1149710), (20, 1034739), (30, 689826), (34, 608670), (36, 574855), (45, 459884), (51, 405780), (60, 344913), (68, 304335), (85, 243468), (90, 229942), (102, 202890), (153, 135260), (170, 121734), (180, 114971), (204, 101445), (255, 81156), (306, 67630), (340, 60867), (510, 40578), (612, 33815), (765, 27052), (1020, 20289), (1530, 13526), (3060, 6763)]