31871645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 12036835

約数列:

[1, 5, 13, 19, 65, 95, 131, 197, 247, 655, 985, 1235, 1703, 2489, 2561, 3743, 8515, 12445, 12805, 18715, 25807, 32357, 48659, 129035, 161785, 243295, 335491, 490333, 1677455, 2451665, 6374329, 31871645]

約数ペア:

[(1, 31871645), (5, 6374329), (13, 2451665), (19, 1677455), (65, 490333), (95, 335491), (131, 243295), (197, 161785), (247, 129035), (655, 48659), (985, 32357), (1235, 25807), (1703, 18715), (2489, 12805), (2561, 12445), (3743, 8515)]