20963120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11393}}^1$

素因数の和:11429

約数の個数: 40

約数和(自身を含む): 50862816

約数和(自身を除く): 29899696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11393, 22786, 45572, 56965, 91144, 113930, 182288, 227860, 262039, 455720, 524078, 911440, 1048156, 1310195, 2096312, 2620390, 4192624, 5240780, 10481560, 20963120]

約数ペア:

[(1, 20963120), (2, 10481560), (4, 5240780), (5, 4192624), (8, 2620390), (10, 2096312), (16, 1310195), (20, 1048156), (23, 911440), (40, 524078), (46, 455720), (80, 262039), (92, 227860), (115, 182288), (184, 113930), (230, 91144), (368, 56965), (460, 45572), (920, 22786), (1840, 11393)]