8461840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{293}}^1$

素因数の和:344

約数の個数: 60

約数和(自身を含む): 20834604

約数和(自身を除く): 12372764

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 293, 304, 361, 380, 586, 722, 760, 1172, 1444, 1465, 1520, 1805, 2344, 2888, 2930, 3610, 4688, 5567, 5776, 5860, 7220, 11134, 11720, 14440, 22268, 23440, 27835, 28880, 44536, 55670, 89072, 105773, 111340, 211546, 222680, 423092, 445360, 528865, 846184, 1057730, 1692368, 2115460, 4230920, 8461840]

約数ペア:

[(1, 8461840), (2, 4230920), (4, 2115460), (5, 1692368), (8, 1057730), (10, 846184), (16, 528865), (19, 445360), (20, 423092), (38, 222680), (40, 211546), (76, 111340), (80, 105773), (95, 89072), (152, 55670), (190, 44536), (293, 28880), (304, 27835), (361, 23440), (380, 22268), (586, 14440), (722, 11720), (760, 11134), (1172, 7220), (1444, 5860), (1465, 5776), (1520, 5567), (1805, 4688), (2344, 3610), (2888, 2930)]