18500475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 35354880

約数和(自身を除く): 16854405

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 131, 175, 269, 393, 525, 655, 807, 917, 1345, 1883, 1965, 2751, 3275, 4035, 4585, 5649, 6725, 9415, 9825, 13755, 20175, 22925, 28245, 35239, 47075, 68775, 105717, 141225, 176195, 246673, 528585, 740019, 880975, 1233365, 2642925, 3700095, 6166825, 18500475]

約数ペア:

[(1, 18500475), (3, 6166825), (5, 3700095), (7, 2642925), (15, 1233365), (21, 880975), (25, 740019), (35, 528585), (75, 246673), (105, 176195), (131, 141225), (175, 105717), (269, 68775), (393, 47075), (525, 35239), (655, 28245), (807, 22925), (917, 20175), (1345, 13755), (1883, 9825), (1965, 9415), (2751, 6725), (3275, 5649), (4035, 4585)]