16842020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{307}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 38394048

約数和(自身を除く): 21552028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 307, 422, 614, 844, 1055, 1228, 1535, 2110, 2743, 3070, 3991, 4220, 5486, 6140, 7982, 10972, 13715, 15964, 19955, 27430, 39910, 54860, 64777, 79820, 129554, 259108, 323885, 647770, 842101, 1295540, 1684202, 3368404, 4210505, 8421010, 16842020]

約数ペア:

[(1, 16842020), (2, 8421010), (4, 4210505), (5, 3368404), (10, 1684202), (13, 1295540), (20, 842101), (26, 647770), (52, 323885), (65, 259108), (130, 129554), (211, 79820), (260, 64777), (307, 54860), (422, 39910), (614, 27430), (844, 19955), (1055, 15964), (1228, 13715), (1535, 10972), (2110, 7982), (2743, 6140), (3070, 5486), (3991, 4220)]