81289860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6421}}^1$

素因数の和:6644

約数の個数: 48

約数和(自身を含む): 228725952

約数和(自身を除く): 147436092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 2110, 2532, 3165, 4220, 6330, 6421, 12660, 12842, 19263, 25684, 32105, 38526, 64210, 77052, 96315, 128420, 192630, 385260, 1354831, 2709662, 4064493, 5419324, 6774155, 8128986, 13548310, 16257972, 20322465, 27096620, 40644930, 81289860]

約数ペア:

[(1, 81289860), (2, 40644930), (3, 27096620), (4, 20322465), (5, 16257972), (6, 13548310), (10, 8128986), (12, 6774155), (15, 5419324), (20, 4064493), (30, 2709662), (60, 1354831), (211, 385260), (422, 192630), (633, 128420), (844, 96315), (1055, 77052), (1266, 64210), (2110, 38526), (2532, 32105), (3165, 25684), (4220, 19263), (6330, 12842), (6421, 12660)]