247547365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 328569696

約数和(自身を除く): 81022331

約数列:

[1, 5, 13, 53, 65, 181, 265, 397, 689, 905, 1985, 2353, 3445, 5161, 9593, 11765, 21041, 25805, 47965, 71857, 105205, 124709, 273533, 359285, 623545, 934141, 1367665, 3808421, 4670705, 19042105, 49509473, 247547365]

約数ペア:

[(1, 247547365), (5, 49509473), (13, 19042105), (53, 4670705), (65, 3808421), (181, 1367665), (265, 934141), (397, 623545), (689, 359285), (905, 273533), (1985, 124709), (2353, 105205), (3445, 71857), (5161, 47965), (9593, 25805), (11765, 21041)]