249350790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{639361}}^1$

素因数の和:639384

約数の個数: 32

約数和(自身を含む): 644476896

約数和(自身を除く): 395126106

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 639361, 1278722, 1918083, 3196805, 3836166, 6393610, 8311693, 9590415, 16623386, 19180830, 24935079, 41558465, 49870158, 83116930, 124675395, 249350790]

約数ペア:

[(1, 249350790), (2, 124675395), (3, 83116930), (5, 49870158), (6, 41558465), (10, 24935079), (13, 19180830), (15, 16623386), (26, 9590415), (30, 8311693), (39, 6393610), (65, 3836166), (78, 3196805), (130, 1918083), (195, 1278722), (390, 639361)]