20121355880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21871039}}^1$

素因数の和:21871073

約数の個数: 32

約数和(自身を含む): 47241446400

約数和(自身を除く): 27120090520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21871039, 43742078, 87484156, 109355195, 174968312, 218710390, 437420780, 503033897, 874841560, 1006067794, 2012135588, 2515169485, 4024271176, 5030338970, 10060677940, 20121355880]

約数ペア:

[(1, 20121355880), (2, 10060677940), (4, 5030338970), (5, 4024271176), (8, 2515169485), (10, 2012135588), (20, 1006067794), (23, 874841560), (40, 503033897), (46, 437420780), (92, 218710390), (115, 174968312), (184, 109355195), (230, 87484156), (460, 43742078), (920, 21871039)]