20543830

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 18336170

約数列:

[1, 2, 5, 10, 23, 46, 115, 179, 230, 358, 499, 895, 998, 1790, 2495, 4117, 4990, 8234, 11477, 20585, 22954, 41170, 57385, 89321, 114770, 178642, 446605, 893210, 2054383, 4108766, 10271915, 20543830]

約数ペア:

[(1, 20543830), (2, 10271915), (5, 4108766), (10, 2054383), (23, 893210), (46, 446605), (115, 178642), (179, 114770), (230, 89321), (358, 57385), (499, 41170), (895, 22954), (998, 20585), (1790, 11477), (2495, 8234), (4117, 4990)]