18874310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2963}}^1$

素因数の和:2997

約数の個数: 48

約数和(自身を含む): 42574896

約数和(自身を除く): 23700586

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2963, 3185, 5926, 6370, 14815, 20741, 29630, 38519, 41482, 77038, 103705, 145187, 192595, 207410, 269633, 290374, 385190, 539266, 725935, 1348165, 1451870, 1887431, 2696330, 3774862, 9437155, 18874310]

約数ペア:

[(1, 18874310), (2, 9437155), (5, 3774862), (7, 2696330), (10, 1887431), (13, 1451870), (14, 1348165), (26, 725935), (35, 539266), (49, 385190), (65, 290374), (70, 269633), (91, 207410), (98, 192595), (130, 145187), (182, 103705), (245, 77038), (455, 41482), (490, 38519), (637, 29630), (910, 20741), (1274, 14815), (2963, 6370), (3185, 5926)]