68478540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87793}}^1$

素因数の和:87818

約数の個数: 48

約数和(自身を含む): 206491488

約数和(自身を除く): 138012948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 87793, 175586, 263379, 351172, 438965, 526758, 877930, 1053516, 1141309, 1316895, 1755860, 2282618, 2633790, 3423927, 4565236, 5267580, 5706545, 6847854, 11413090, 13695708, 17119635, 22826180, 34239270, 68478540]

約数ペア:

[(1, 68478540), (2, 34239270), (3, 22826180), (4, 17119635), (5, 13695708), (6, 11413090), (10, 6847854), (12, 5706545), (13, 5267580), (15, 4565236), (20, 3423927), (26, 2633790), (30, 2282618), (39, 1755860), (52, 1316895), (60, 1141309), (65, 1053516), (78, 877930), (130, 526758), (156, 438965), (195, 351172), (260, 263379), (390, 175586), (780, 87793)]