2720560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1097}}^1$

素因数の和:1141

約数の個数: 40

約数和(自身を含む): 6535296

約数和(自身を除く): 3814736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1097, 1240, 2194, 2480, 4388, 5485, 8776, 10970, 17552, 21940, 34007, 43880, 68014, 87760, 136028, 170035, 272056, 340070, 544112, 680140, 1360280, 2720560]

約数ペア:

[(1, 2720560), (2, 1360280), (4, 680140), (5, 544112), (8, 340070), (10, 272056), (16, 170035), (20, 136028), (31, 87760), (40, 68014), (62, 43880), (80, 34007), (124, 21940), (155, 17552), (248, 10970), (310, 8776), (496, 5485), (620, 4388), (1097, 2480), (1240, 2194)]