72486440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139397}}^1$

素因数の和:139421

約数の個数: 32

約数和(自身を含む): 175641480

約数和(自身を除く): 103155040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139397, 278794, 557588, 696985, 1115176, 1393970, 1812161, 2787940, 3624322, 5575880, 7248644, 9060805, 14497288, 18121610, 36243220, 72486440]

約数ペア:

[(1, 72486440), (2, 36243220), (4, 18121610), (5, 14497288), (8, 9060805), (10, 7248644), (13, 5575880), (20, 3624322), (26, 2787940), (40, 1812161), (52, 1393970), (65, 1115176), (104, 696985), (130, 557588), (260, 278794), (520, 139397)]