128406780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1447}}^1$

素因数の和:1508

約数の個数: 144

約数和(自身を含む): 426928320

約数和(自身を除く): 298521540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 29, 30, 34, 36, 45, 51, 58, 60, 68, 85, 87, 90, 102, 116, 145, 153, 170, 174, 180, 204, 255, 261, 290, 306, 340, 348, 435, 493, 510, 522, 580, 612, 765, 870, 986, 1020, 1044, 1305, 1447, 1479, 1530, 1740, 1972, 2465, 2610, 2894, 2958, 3060, 4341, 4437, 4930, 5220, 5788, 5916, 7235, 7395, 8682, 8874, 9860, 13023, 14470, 14790, 17364, 17748, 21705, 22185, 24599, 26046, 28940, 29580, 41963, 43410, 44370, 49198, 52092, 65115, 73797, 83926, 86820, 88740, 98396, 122995, 125889, 130230, 147594, 167852, 209815, 221391, 245990, 251778, 260460, 295188, 368985, 377667, 419630, 442782, 491980, 503556, 629445, 713371, 737970, 755334, 839260, 885564, 1106955, 1258890, 1426742, 1475940, 1510668, 1888335, 2140113, 2213910, 2517780, 2853484, 3566855, 3776670, 4280226, 4427820, 6420339, 7133710, 7553340, 8560452, 10700565, 12840678, 14267420, 21401130, 25681356, 32101695, 42802260, 64203390, 128406780]

約数ペア:

[(1, 128406780), (2, 64203390), (3, 42802260), (4, 32101695), (5, 25681356), (6, 21401130), (9, 14267420), (10, 12840678), (12, 10700565), (15, 8560452), (17, 7553340), (18, 7133710), (20, 6420339), (29, 4427820), (30, 4280226), (34, 3776670), (36, 3566855), (45, 2853484), (51, 2517780), (58, 2213910), (60, 2140113), (68, 1888335), (85, 1510668), (87, 1475940), (90, 1426742), (102, 1258890), (116, 1106955), (145, 885564), (153, 839260), (170, 755334), (174, 737970), (180, 713371), (204, 629445), (255, 503556), (261, 491980), (290, 442782), (306, 419630), (340, 377667), (348, 368985), (435, 295188), (493, 260460), (510, 251778), (522, 245990), (580, 221391), (612, 209815), (765, 167852), (870, 147594), (986, 130230), (1020, 125889), (1044, 122995), (1305, 98396), (1447, 88740), (1479, 86820), (1530, 83926), (1740, 73797), (1972, 65115), (2465, 52092), (2610, 49198), (2894, 44370), (2958, 43410), (3060, 41963), (4341, 29580), (4437, 28940), (4930, 26046), (5220, 24599), (5788, 22185), (5916, 21705), (7235, 17748), (7395, 17364), (8682, 14790), (8874, 14470), (9860, 13023)]