1997097505

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2347}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 2784352320

約数和(自身を除く): 787254815

約数列:

[1, 5, 13, 19, 53, 65, 95, 169, 247, 265, 689, 845, 1007, 1235, 2347, 3211, 3445, 5035, 8957, 11735, 13091, 16055, 30511, 44593, 44785, 65455, 124391, 152555, 170183, 222965, 396643, 579709, 621955, 850915, 1617083, 1983215, 2363429, 2898545, 7536217, 8085415, 11817145, 21022079, 30724577, 37681085, 105110395, 153622885, 399419501, 1997097505]

約数ペア:

[(1, 1997097505), (5, 399419501), (13, 153622885), (19, 105110395), (53, 37681085), (65, 30724577), (95, 21022079), (169, 11817145), (247, 8085415), (265, 7536217), (689, 2898545), (845, 2363429), (1007, 1983215), (1235, 1617083), (2347, 850915), (3211, 621955), (3445, 579709), (5035, 396643), (8957, 222965), (11735, 170183), (13091, 152555), (16055, 124391), (30511, 65455), (44593, 44785)]