16903820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 37231488

約数和(自身を除く): 20327668

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 431, 530, 740, 862, 1060, 1724, 1961, 2155, 3922, 4310, 7844, 8620, 9805, 15947, 19610, 22843, 31894, 39220, 45686, 63788, 79735, 91372, 114215, 159470, 228430, 318940, 456860, 845191, 1690382, 3380764, 4225955, 8451910, 16903820]

約数ペア:

[(1, 16903820), (2, 8451910), (4, 4225955), (5, 3380764), (10, 1690382), (20, 845191), (37, 456860), (53, 318940), (74, 228430), (106, 159470), (148, 114215), (185, 91372), (212, 79735), (265, 63788), (370, 45686), (431, 39220), (530, 31894), (740, 22843), (862, 19610), (1060, 15947), (1724, 9805), (1961, 8620), (2155, 7844), (3922, 4310)]