77981790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 64

約数和(自身を含む): 194844672

約数和(自身を除く): 116862882

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 61, 86, 122, 129, 183, 215, 258, 305, 366, 430, 610, 645, 915, 991, 1290, 1830, 1982, 2623, 2973, 4955, 5246, 5946, 7869, 9910, 13115, 14865, 15738, 26230, 29730, 39345, 42613, 60451, 78690, 85226, 120902, 127839, 181353, 213065, 255678, 302255, 362706, 426130, 604510, 639195, 906765, 1278390, 1813530, 2599393, 5198786, 7798179, 12996965, 15596358, 25993930, 38990895, 77981790]

約数ペア:

[(1, 77981790), (2, 38990895), (3, 25993930), (5, 15596358), (6, 12996965), (10, 7798179), (15, 5198786), (30, 2599393), (43, 1813530), (61, 1278390), (86, 906765), (122, 639195), (129, 604510), (183, 426130), (215, 362706), (258, 302255), (305, 255678), (366, 213065), (430, 181353), (610, 127839), (645, 120902), (915, 85226), (991, 78690), (1290, 60451), (1830, 42613), (1982, 39345), (2623, 29730), (2973, 26230), (4955, 15738), (5246, 14865), (5946, 13115), (7869, 9910)]