28567120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11519}}^1$

素因数の和:11563

約数の個数: 40

約数和(自身を含む): 68567040

約数和(自身を除く): 39999920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11519, 23038, 46076, 57595, 92152, 115190, 184304, 230380, 357089, 460760, 714178, 921520, 1428356, 1785445, 2856712, 3570890, 5713424, 7141780, 14283560, 28567120]

約数ペア:

[(1, 28567120), (2, 14283560), (4, 7141780), (5, 5713424), (8, 3570890), (10, 2856712), (16, 1785445), (20, 1428356), (31, 921520), (40, 714178), (62, 460760), (80, 357089), (124, 230380), (155, 184304), (248, 115190), (310, 92152), (496, 57595), (620, 46076), (1240, 23038), (2480, 11519)]