78880120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5783}}^1$

素因数の和:5836

約数の個数: 64

約数和(自身を含む): 199895040

約数和(自身を除く): 121014920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 5783, 6820, 11566, 13640, 23132, 28915, 46264, 57830, 63613, 115660, 127226, 179273, 231320, 254452, 318065, 358546, 508904, 636130, 717092, 896365, 1272260, 1434184, 1792730, 1972003, 2544520, 3585460, 3944006, 7170920, 7888012, 9860015, 15776024, 19720030, 39440060, 78880120]

約数ペア:

[(1, 78880120), (2, 39440060), (4, 19720030), (5, 15776024), (8, 9860015), (10, 7888012), (11, 7170920), (20, 3944006), (22, 3585460), (31, 2544520), (40, 1972003), (44, 1792730), (55, 1434184), (62, 1272260), (88, 896365), (110, 717092), (124, 636130), (155, 508904), (220, 358546), (248, 318065), (310, 254452), (341, 231320), (440, 179273), (620, 127226), (682, 115660), (1240, 63613), (1364, 57830), (1705, 46264), (2728, 28915), (3410, 23132), (5783, 13640), (6820, 11566)]