77768840

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{3203}}^1$

素因数の和:3821

約数の個数: 32

約数和(自身を含む): 175322880

約数和(自身を除く): 97554040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1214, 2428, 3035, 3203, 4856, 6070, 6406, 12140, 12812, 16015, 24280, 25624, 32030, 64060, 128120, 1944221, 3888442, 7776884, 9721105, 15553768, 19442210, 38884420, 77768840]

約数ペア:

[(1, 77768840), (2, 38884420), (4, 19442210), (5, 15553768), (8, 9721105), (10, 7776884), (20, 3888442), (40, 1944221), (607, 128120), (1214, 64060), (2428, 32030), (3035, 25624), (3203, 24280), (4856, 16015), (6070, 12812), (6406, 12140)]