8678440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{601}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 20642580

約数和(自身を除く): 11964140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 601, 722, 760, 1202, 1444, 1805, 2404, 2888, 3005, 3610, 4808, 6010, 7220, 11419, 12020, 14440, 22838, 24040, 45676, 57095, 91352, 114190, 216961, 228380, 433922, 456760, 867844, 1084805, 1735688, 2169610, 4339220, 8678440]

約数ペア:

[(1, 8678440), (2, 4339220), (4, 2169610), (5, 1735688), (8, 1084805), (10, 867844), (19, 456760), (20, 433922), (38, 228380), (40, 216961), (76, 114190), (95, 91352), (152, 57095), (190, 45676), (361, 24040), (380, 22838), (601, 14440), (722, 12020), (760, 11419), (1202, 7220), (1444, 6010), (1805, 4808), (2404, 3610), (2888, 3005)]