20314736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{967}}^1$

素因数の和:1089

約数の個数: 40

約数和(自身を含む): 42851424

約数和(自身を除く): 22536688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 404, 808, 967, 1313, 1616, 1934, 2626, 3868, 5252, 7736, 10504, 12571, 15472, 21008, 25142, 50284, 97667, 100568, 195334, 201136, 390668, 781336, 1269671, 1562672, 2539342, 5078684, 10157368, 20314736]

約数ペア:

[(1, 20314736), (2, 10157368), (4, 5078684), (8, 2539342), (13, 1562672), (16, 1269671), (26, 781336), (52, 390668), (101, 201136), (104, 195334), (202, 100568), (208, 97667), (404, 50284), (808, 25142), (967, 21008), (1313, 15472), (1616, 12571), (1934, 10504), (2626, 7736), (3868, 5252)]