31027280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12511}}^1$

素因数の和:12555

約数の個数: 40

約数和(自身を含む): 74471424

約数和(自身を除く): 43444144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12511, 25022, 50044, 62555, 100088, 125110, 200176, 250220, 387841, 500440, 775682, 1000880, 1551364, 1939205, 3102728, 3878410, 6205456, 7756820, 15513640, 31027280]

約数ペア:

[(1, 31027280), (2, 15513640), (4, 7756820), (5, 6205456), (8, 3878410), (10, 3102728), (16, 1939205), (20, 1551364), (31, 1000880), (40, 775682), (62, 500440), (80, 387841), (124, 250220), (155, 200176), (248, 125110), (310, 100088), (496, 62555), (620, 50044), (1240, 25022), (2480, 12511)]