81313515

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 144892800

約数和(自身を除く): 63579285

約数列:

[1, 3, 5, 9, 15, 45, 79, 89, 237, 257, 267, 395, 445, 711, 771, 801, 1185, 1285, 1335, 2313, 3555, 3855, 4005, 7031, 11565, 20303, 21093, 22873, 35155, 60909, 63279, 68619, 101515, 105465, 114365, 182727, 205857, 304545, 316395, 343095, 913635, 1029285, 1806967, 5420901, 9034835, 16262703, 27104505, 81313515]

約数ペア:

[(1, 81313515), (3, 27104505), (5, 16262703), (9, 9034835), (15, 5420901), (45, 1806967), (79, 1029285), (89, 913635), (237, 343095), (257, 316395), (267, 304545), (395, 205857), (445, 182727), (711, 114365), (771, 105465), (801, 101515), (1185, 68619), (1285, 63279), (1335, 60909), (2313, 35155), (3555, 22873), (3855, 21093), (4005, 20303), (7031, 11565)]