18683900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:998

約数の個数: 36

約数和(自身を含む): 40757808

約数和(自身を除く): 22073908

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 727, 1028, 1285, 1454, 2570, 2908, 3635, 5140, 6425, 7270, 12850, 14540, 18175, 25700, 36350, 72700, 186839, 373678, 747356, 934195, 1868390, 3736780, 4670975, 9341950, 18683900]

約数ペア:

[(1, 18683900), (2, 9341950), (4, 4670975), (5, 3736780), (10, 1868390), (20, 934195), (25, 747356), (50, 373678), (100, 186839), (257, 72700), (514, 36350), (727, 25700), (1028, 18175), (1285, 14540), (1454, 12850), (2570, 7270), (2908, 6425), (3635, 5140)]