17807920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17123}}^1$

素因数の和:17149

約数の個数: 40

約数和(自身を含む): 44590896

約数和(自身を除く): 26782976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17123, 34246, 68492, 85615, 136984, 171230, 222599, 273968, 342460, 445198, 684920, 890396, 1112995, 1369840, 1780792, 2225990, 3561584, 4451980, 8903960, 17807920]

約数ペア:

[(1, 17807920), (2, 8903960), (4, 4451980), (5, 3561584), (8, 2225990), (10, 1780792), (13, 1369840), (16, 1112995), (20, 890396), (26, 684920), (40, 445198), (52, 342460), (65, 273968), (80, 222599), (104, 171230), (130, 136984), (208, 85615), (260, 68492), (520, 34246), (1040, 17123)]