4987280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2055

約数の個数: 40

約数和(自身を含む): 11975424

約数和(自身を除く): 6988144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2011, 2480, 4022, 8044, 10055, 16088, 20110, 32176, 40220, 62341, 80440, 124682, 160880, 249364, 311705, 498728, 623410, 997456, 1246820, 2493640, 4987280]

約数ペア:

[(1, 4987280), (2, 2493640), (4, 1246820), (5, 997456), (8, 623410), (10, 498728), (16, 311705), (20, 249364), (31, 160880), (40, 124682), (62, 80440), (80, 62341), (124, 40220), (155, 32176), (248, 20110), (310, 16088), (496, 10055), (620, 8044), (1240, 4022), (2011, 2480)]