18019040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8663}}^1$

素因数の和:8691

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 27830848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 8663, 17326, 34652, 43315, 69304, 86630, 112619, 138608, 173260, 225238, 277216, 346520, 450476, 563095, 693040, 900952, 1126190, 1386080, 1801904, 2252380, 3603808, 4504760, 9009520, 18019040]

約数ペア:

[(1, 18019040), (2, 9009520), (4, 4504760), (5, 3603808), (8, 2252380), (10, 1801904), (13, 1386080), (16, 1126190), (20, 900952), (26, 693040), (32, 563095), (40, 450476), (52, 346520), (65, 277216), (80, 225238), (104, 173260), (130, 138608), (160, 112619), (208, 86630), (260, 69304), (416, 43315), (520, 34652), (1040, 17326), (2080, 8663)]