25919720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20903}}^1$

素因数の和:20945

約数の個数: 32

約数和(自身を含む): 60203520

約数和(自身を除く): 34283800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 20903, 41806, 83612, 104515, 167224, 209030, 418060, 647993, 836120, 1295986, 2591972, 3239965, 5183944, 6479930, 12959860, 25919720]

約数ペア:

[(1, 25919720), (2, 12959860), (4, 6479930), (5, 5183944), (8, 3239965), (10, 2591972), (20, 1295986), (31, 836120), (40, 647993), (62, 418060), (124, 209030), (155, 167224), (248, 104515), (310, 83612), (620, 41806), (1240, 20903)]