79812880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{397}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 213200640

約数和(自身を除く): 133387760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 359, 397, 560, 718, 794, 1436, 1588, 1795, 1985, 2513, 2779, 2872, 3176, 3590, 3970, 5026, 5558, 5744, 6352, 7180, 7940, 10052, 11116, 12565, 13895, 14360, 15880, 20104, 22232, 25130, 27790, 28720, 31760, 40208, 44464, 50260, 55580, 100520, 111160, 142523, 201040, 222320, 285046, 570092, 712615, 997661, 1140184, 1425230, 1995322, 2280368, 2850460, 3990644, 4988305, 5700920, 7981288, 9976610, 11401840, 15962576, 19953220, 39906440, 79812880]

約数ペア:

[(1, 79812880), (2, 39906440), (4, 19953220), (5, 15962576), (7, 11401840), (8, 9976610), (10, 7981288), (14, 5700920), (16, 4988305), (20, 3990644), (28, 2850460), (35, 2280368), (40, 1995322), (56, 1425230), (70, 1140184), (80, 997661), (112, 712615), (140, 570092), (280, 285046), (359, 222320), (397, 201040), (560, 142523), (718, 111160), (794, 100520), (1436, 55580), (1588, 50260), (1795, 44464), (1985, 40208), (2513, 31760), (2779, 28720), (2872, 27790), (3176, 25130), (3590, 22232), (3970, 20104), (5026, 15880), (5558, 14360), (5744, 13895), (6352, 12565), (7180, 11116), (7940, 10052)]