77802920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{953}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 189922320

約数和(自身を除く): 112119400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 953, 1256, 1570, 1906, 2041, 3140, 3812, 4082, 4765, 6280, 7624, 8164, 9530, 10205, 12389, 16328, 19060, 20410, 24778, 38120, 40820, 49556, 61945, 81640, 99112, 123890, 149621, 247780, 299242, 495560, 598484, 748105, 1196968, 1496210, 1945073, 2992420, 3890146, 5984840, 7780292, 9725365, 15560584, 19450730, 38901460, 77802920]

約数ペア:

[(1, 77802920), (2, 38901460), (4, 19450730), (5, 15560584), (8, 9725365), (10, 7780292), (13, 5984840), (20, 3890146), (26, 2992420), (40, 1945073), (52, 1496210), (65, 1196968), (104, 748105), (130, 598484), (157, 495560), (260, 299242), (314, 247780), (520, 149621), (628, 123890), (785, 99112), (953, 81640), (1256, 61945), (1570, 49556), (1906, 40820), (2041, 38120), (3140, 24778), (3812, 20410), (4082, 19060), (4765, 16328), (6280, 12389), (7624, 10205), (8164, 9530)]