77656240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 188487936

約数和(自身を除く): 110831696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 173, 181, 248, 310, 346, 362, 496, 620, 692, 724, 865, 905, 1240, 1384, 1448, 1730, 1810, 2480, 2768, 2896, 3460, 3620, 5363, 5611, 6920, 7240, 10726, 11222, 13840, 14480, 21452, 22444, 26815, 28055, 31313, 42904, 44888, 53630, 56110, 62626, 85808, 89776, 107260, 112220, 125252, 156565, 214520, 224440, 250504, 313130, 429040, 448880, 501008, 626260, 970703, 1252520, 1941406, 2505040, 3882812, 4853515, 7765624, 9707030, 15531248, 19414060, 38828120, 77656240]

約数ペア:

[(1, 77656240), (2, 38828120), (4, 19414060), (5, 15531248), (8, 9707030), (10, 7765624), (16, 4853515), (20, 3882812), (31, 2505040), (40, 1941406), (62, 1252520), (80, 970703), (124, 626260), (155, 501008), (173, 448880), (181, 429040), (248, 313130), (310, 250504), (346, 224440), (362, 214520), (496, 156565), (620, 125252), (692, 112220), (724, 107260), (865, 89776), (905, 85808), (1240, 62626), (1384, 56110), (1448, 53630), (1730, 44888), (1810, 42904), (2480, 31313), (2768, 28055), (2896, 26815), (3460, 22444), (3620, 21452), (5363, 14480), (5611, 13840), (6920, 11222), (7240, 10726)]