28754908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 62403264

約数和(自身を除く): 33648356

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 197, 364, 394, 401, 788, 802, 1379, 1604, 2561, 2758, 2807, 5122, 5213, 5516, 5614, 10244, 10426, 11228, 17927, 20852, 35854, 36491, 71708, 72982, 78997, 145964, 157994, 315988, 552979, 1026961, 1105958, 2053922, 2211916, 4107844, 7188727, 14377454, 28754908]

約数ペア:

[(1, 28754908), (2, 14377454), (4, 7188727), (7, 4107844), (13, 2211916), (14, 2053922), (26, 1105958), (28, 1026961), (52, 552979), (91, 315988), (182, 157994), (197, 145964), (364, 78997), (394, 72982), (401, 71708), (788, 36491), (802, 35854), (1379, 20852), (1604, 17927), (2561, 11228), (2758, 10426), (2807, 10244), (5122, 5614), (5213, 5516)]