78879580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4273}}^1$

素因数の和:4366

約数の個数: 48

約数和(自身を含む): 180944064

約数和(自身を除く): 102064484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4273, 4615, 8546, 9230, 17092, 18460, 21365, 42730, 55549, 85460, 111098, 222196, 277745, 303383, 555490, 606766, 1110980, 1213532, 1516915, 3033830, 3943979, 6067660, 7887958, 15775916, 19719895, 39439790, 78879580]

約数ペア:

[(1, 78879580), (2, 39439790), (4, 19719895), (5, 15775916), (10, 7887958), (13, 6067660), (20, 3943979), (26, 3033830), (52, 1516915), (65, 1213532), (71, 1110980), (130, 606766), (142, 555490), (260, 303383), (284, 277745), (355, 222196), (710, 111098), (923, 85460), (1420, 55549), (1846, 42730), (3692, 21365), (4273, 18460), (4615, 17092), (8546, 9230)]