878886540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:677

約数の個数: 216

約数和(自身を含む): 3121412112

約数和(自身を除く): 2242525572

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 251, 252, 294, 315, 397, 420, 441, 490, 502, 588, 630, 735, 753, 794, 882, 980, 1004, 1191, 1255, 1260, 1470, 1506, 1588, 1757, 1764, 1985, 2205, 2259, 2382, 2510, 2779, 2940, 3012, 3514, 3573, 3765, 3970, 4410, 4518, 4764, 5020, 5271, 5558, 5955, 7028, 7146, 7530, 7940, 8337, 8785, 8820, 9036, 10542, 11116, 11295, 11910, 12299, 13895, 14292, 15060, 15813, 16674, 17570, 17865, 19453, 21084, 22590, 23820, 24598, 25011, 26355, 27790, 31626, 33348, 35140, 35730, 36897, 38906, 41685, 45180, 49196, 50022, 52710, 55580, 58359, 61495, 63252, 71460, 73794, 77812, 79065, 83370, 97265, 99647, 100044, 105420, 110691, 116718, 122990, 125055, 147588, 158130, 166740, 175077, 184485, 194530, 199294, 221382, 233436, 245980, 250110, 291795, 298941, 316260, 350154, 368970, 389060, 398588, 442764, 498235, 500220, 553455, 583590, 597882, 697529, 700308, 737940, 875385, 896823, 996470, 1106910, 1167180, 1195764, 1395058, 1494705, 1750770, 1793646, 1992940, 2092587, 2213820, 2790116, 2989410, 3487645, 3501540, 3587292, 4185174, 4484115, 4882703, 5978820, 6277761, 6975290, 8370348, 8968230, 9765406, 10462935, 12555522, 13950580, 14648109, 17936460, 19530812, 20925870, 24413515, 25111044, 29296218, 31388805, 41851740, 43944327, 48827030, 58592436, 62777610, 73240545, 87888654, 97654060, 125555220, 146481090, 175777308, 219721635, 292962180, 439443270, 878886540]

約数ペア:

[(1, 878886540), (2, 439443270), (3, 292962180), (4, 219721635), (5, 175777308), (6, 146481090), (7, 125555220), (9, 97654060), (10, 87888654), (12, 73240545), (14, 62777610), (15, 58592436), (18, 48827030), (20, 43944327), (21, 41851740), (28, 31388805), (30, 29296218), (35, 25111044), (36, 24413515), (42, 20925870), (45, 19530812), (49, 17936460), (60, 14648109), (63, 13950580), (70, 12555522), (84, 10462935), (90, 9765406), (98, 8968230), (105, 8370348), (126, 6975290), (140, 6277761), (147, 5978820), (180, 4882703), (196, 4484115), (210, 4185174), (245, 3587292), (251, 3501540), (252, 3487645), (294, 2989410), (315, 2790116), (397, 2213820), (420, 2092587), (441, 1992940), (490, 1793646), (502, 1750770), (588, 1494705), (630, 1395058), (735, 1195764), (753, 1167180), (794, 1106910), (882, 996470), (980, 896823), (1004, 875385), (1191, 737940), (1255, 700308), (1260, 697529), (1470, 597882), (1506, 583590), (1588, 553455), (1757, 500220), (1764, 498235), (1985, 442764), (2205, 398588), (2259, 389060), (2382, 368970), (2510, 350154), (2779, 316260), (2940, 298941), (3012, 291795), (3514, 250110), (3573, 245980), (3765, 233436), (3970, 221382), (4410, 199294), (4518, 194530), (4764, 184485), (5020, 175077), (5271, 166740), (5558, 158130), (5955, 147588), (7028, 125055), (7146, 122990), (7530, 116718), (7940, 110691), (8337, 105420), (8785, 100044), (8820, 99647), (9036, 97265), (10542, 83370), (11116, 79065), (11295, 77812), (11910, 73794), (12299, 71460), (13895, 63252), (14292, 61495), (15060, 58359), (15813, 55580), (16674, 52710), (17570, 50022), (17865, 49196), (19453, 45180), (21084, 41685), (22590, 38906), (23820, 36897), (24598, 35730), (25011, 35140), (26355, 33348), (27790, 31626)]