72990723

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{719}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 111283200

約数和(自身を除く): 38292477

約数列:

[1, 3, 13, 19, 39, 57, 137, 247, 411, 719, 741, 1781, 2157, 2603, 5343, 7809, 9347, 13661, 28041, 33839, 40983, 98503, 101517, 177593, 295509, 532779, 1280539, 1871557, 3841617, 5614671, 24330241, 72990723]

約数ペア:

[(1, 72990723), (3, 24330241), (13, 5614671), (19, 3841617), (39, 1871557), (57, 1280539), (137, 532779), (247, 295509), (411, 177593), (719, 101517), (741, 98503), (1781, 40983), (2157, 33839), (2603, 28041), (5343, 13661), (7809, 9347)]