20942360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16889}}^1$

素因数の和:16931

約数の個数: 32

約数和(自身を含む): 48643200

約数和(自身を除く): 27700840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16889, 33778, 67556, 84445, 135112, 168890, 337780, 523559, 675560, 1047118, 2094236, 2617795, 4188472, 5235590, 10471180, 20942360]

約数ペア:

[(1, 20942360), (2, 10471180), (4, 5235590), (5, 4188472), (8, 2617795), (10, 2094236), (20, 1047118), (31, 675560), (40, 523559), (62, 337780), (124, 168890), (155, 135112), (248, 84445), (310, 67556), (620, 33778), (1240, 16889)]