78444880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 192559104

約数和(自身を除く): 114114224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 124, 155, 188, 235, 248, 310, 376, 470, 496, 620, 673, 752, 940, 1240, 1346, 1457, 1880, 2480, 2692, 2914, 3365, 3760, 5384, 5828, 6730, 7285, 10768, 11656, 13460, 14570, 20863, 23312, 26920, 29140, 31631, 41726, 53840, 58280, 63262, 83452, 104315, 116560, 126524, 158155, 166904, 208630, 253048, 316310, 333808, 417260, 506096, 632620, 834520, 980561, 1265240, 1669040, 1961122, 2530480, 3922244, 4902805, 7844488, 9805610, 15688976, 19611220, 39222440, 78444880]

約数ペア:

[(1, 78444880), (2, 39222440), (4, 19611220), (5, 15688976), (8, 9805610), (10, 7844488), (16, 4902805), (20, 3922244), (31, 2530480), (40, 1961122), (47, 1669040), (62, 1265240), (80, 980561), (94, 834520), (124, 632620), (155, 506096), (188, 417260), (235, 333808), (248, 316310), (310, 253048), (376, 208630), (470, 166904), (496, 158155), (620, 126524), (673, 116560), (752, 104315), (940, 83452), (1240, 63262), (1346, 58280), (1457, 53840), (1880, 41726), (2480, 31631), (2692, 29140), (2914, 26920), (3365, 23312), (3760, 20863), (5384, 14570), (5828, 13460), (6730, 11656), (7285, 10768)]